Just saw this video. A general rule for LED bulbs is use a colored bulb behind a colored lens, such as red led behind red lens. That's what emergency equipment installers do. It give you the best output of brightness/intensity. Keep up the good work.
The idea behind using the same color of LED chips behind colored lens is because unlike incandescent bulbs (which have quite a broad spectrum of light, ie. they actually shine more colors (orangfe, red, blue, yellow etc) with different intesity, due to principle on which they work, basically being a very hot wire) the led chips are actually quite good with having a narrow light spectrum. Meaning the red led chips have majority of their light output in red color, and only a little of other colors. The red lens basically work as a filter, so they block majority of other colors and only pass the red color. That is why you have the best color accuracy and brightness using the same color led chip as the color of the lens. The transmission of the light is most efficient in that setup. While you can have a white led behind red lens, it will work, but the overall result will not be the best.
but the light clearly looked pinker with the red leds. i found the red color to be better with the white led but the light was brighter with the red led. 13:36
I've got JDM astar max in red and they are the best I've ever tried. Extremely bright and when they light up they are red red not pinkish red as you are correct white bulbs in red taillight housing looks pinkish.
A lot of LED manufacturers suggest using red lights with red lenses. Because the white tends to look more pinkish because of the brighter white color. But thank you for showing the differences in quality LEDs to cheap LEDs
I don't know if it's already been mentioned in one of the comments, but all the Sylvania LEDs were noticeably quicker to light than the incandescent. That's a big plus for a brake light. The other LEDs were not as quick as the Sylvanias (to my eyes), but were still quicker to light than the incandescent. And I agree that you want the brightness of the brake lights to be discernably different from the regular running lights. Great video! Glad I came across while search Amazon for LEDs. It's made a huge difference in what I'll buy.
White led are composite rgb chips, while red is just red. So you get more intensity with just red. Also as mentioned earlier the tail light housing acts as a filter letting only red go through
The original post is very old, but I’ll correct it anyway. White LEDs are actually blue LEDs where the blue + UV light of the LED excite a phosphor material that glows with a white color (the yellow color of the LED is actually the phosphor). The output spectrum of a typical white LED is weak in the red and strong in the blue, so behind a red filter the light will be relatively weak. The light from a red LED passes through a red filter unfiltered.
Thanks for this video. I bought the Sylvania 1157r to swap out the all the stop light and running lights on the rear end of my car (2018 Hyundai) The fast response of the brake light and how Sylvania handled the lower light output is what sold me.
I had the exact same problem with a pair of led globes i bought on ebay. No difference between brake & tail lights. Dangerous for night time driving. Went back to standard globes. Thanks for the great advice, results are awesome. I'll try again. Cheers.
I had the EXACT same problem with choosing LED bulbs from the auto shop and getting disappointing results from the best brands. I'm glad I got to your video!
A couple of things - first up, I *think* the second set of bulbs you tested are "handed" LED bulbs. One pin goes through a voltage regulator, giving dim light for sidelights, the other pin goes straight to the LED array and has no voltage regulator. If you look at the test footage at 5:30, one bulb is brighter than the other. The dimmer bulb gets brighter when the brake is pressed, while the other bulb stays the same. If you had rotated the brighter bulb 180 degrees and tried again, you might have found they work better. You might want to re-test them? I could be dead wrong, but I've had LED brake bulbs do this for me, and it confusilated me for a while. The other thing is - the white bulbs probably are brighter (or equally bright) but your tail light glass is red. It filters out everything except red light. The rest of the light energy is wasted as heat within the plastic (they'll get a fraction of a degree hotter) when the light goes through the red coloured plastic. This happens with incandescent bulbs as well as LED's. Red LED's only emit wavelengths of light in the red portion of the visible electromagnetic spectrum, which will mostly pass through the red plastic without being wasted as heat. Third - if you've got a paper laminator, cut out circular pieces of aluminium foil with a hole in the middle just big enough to get the bulb through, then laminate them. Cut them out, but be careful to make sure there's no aluminium exposed at the edges (which could cause a short). The whole thing should be covered in lamination plastic. Put them on the bulbs, then put the bulbs in the sockets. Hey presto, reflectors for cheap. I did it for some trailer lights and it improved the light output by about 25%.
I swapped back to my OEM units as certain led elements started to flicker as they started to fail. Just something to keep an eye out after awhile. Some vehicles will want a resistor if the lighting system is sensitive to voltages. It's been a couple years now, and perhaps the ones on the market are better hopefully. I've also been waiting to replace my interior lighting to LED just in case I have one of those "DOH!" moments of leaving them on all night. Which is why I have chosen not to do a review as of yet on my own personal channel. But great to see someone else providing their insights and product introduction to the various 1157's. Thank you. :) Cheers
My old RV has 3 tail lights on each side and I tried the cheap amazon LEDs and had the problem with the difference in brightness from running light to stop light not being very different. I'm glad I found your video. Thanks!
This is exactly the type of video I was looking for. That change between tail light and brake light makes all the difference. That will make or break that mod for me.
Thank you.I bought 1156 for my lawntractor headlights,and even as many leds that are on them,it's a whiter light,just not bright enough.The yellow light coming from the standard bulb goes about 4 ft, further.I'll look at the Sylvania options.
@ 14:23 - “ Which one would you pick? I know which one I would pick.” I would pick the incandescents, because it doesn’t look like any of the LEDs you tested were any brighter, in taillight or brake light mode, than the standard incandescent bulbs. The LED reaction time from taillight to brake light is a little quicker, but if the LEDs aren’t brighter, why bother?
cbpitt01 Yeap leds in cars are a pain. Reaction time is the only advantage (and 3rd brake lite can usually do that task). LEDs in cars don’t even last longer than bulbs before they start to flicker and flash. Don’t waste your money guys! Standard is best.
I've noticed that they don't seem to last either. However, lately they have been made with heat sinks which seems to be the problem of all LED chips. They work well but need to vent the heat they generate. I just picked up some 1156 bulbs from Amazon that are designed for RVs and they are really nice quality and bright with a ceramic ring at the base of the bulb making it about 3/8" longer than a standard bulb. $15 CAD for 2 www.amazon.ca/gp/product/B077GVCH56/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Found this while researching switching my 62 to LED.... this made me decide to stay with normal 1157s... even the reds don't look better than the left side in the video to me. Thanks for posting this.
Yeah, about that housing. I tested red LED bulbs in my Harley which has a chrome reflector surface. The LEDs each produce a point light source with parallel beams of light. When these beams reflect off of the chrome surface it's still a point of light that's been reflected. So I created a white reflective surface by installing self adhesive vinyl sheet. This was more effective as a reflector because it diffused the beams as it reflected them into the lens, thereby lighting up the entire lens, not just a single point on it. The lens then directs the light to the desired target. They're now a lot more visible. Also, I installed a unit that flashes the brake lights causing an attention getter.
Man thank you... The ones I got from a well known online LED supplier did not have significant difference in brightness either and I almost got rear ended by an elderly woman with a lead foot. I just ordered mine.. Thanks for putting your cash into figuring this out for the rest of us. ..A grateful FB owner.
Freddy, the Supra is not dumb... There should be a reflector behind each tail light bulb. They're just missing on yours. I remember seeing them when I had mine and had to replace a bulb. Look it up and try to get them, they'll make a big difference with those Sylvanias.
I have a 77 Toyota pickup and it has reflectors. Just went to LEDs and used the Zevo red for the brake lights. I also cleaned and polished the lenses real well. But also covered the reflector and panted the tan colored plastic housing gloss white. Remember gloss white reflects the most of the colors. I then plugged the socket holes with a small piece of paper town and cleaned the aluminum reflector, then sprayed it, and the new gloss white painted area, with the 2x gloss clear, to increase the shiny mirror effect.
@ KK-M5-E39 I have to do a "me too" on that. I had my old MK3 and after having all the mods done (lexus mod, hybrid turbo etc etc), it went for the head to be properly gas flowed and the mechanic (long story short) stole it. Police said they knew he had done it but not QUITE enough proof. Insurance paid out but only a tiny fraction of what the car was worth. Miss the old girl so much.
The issue with bulbs that share the same chips for parking and brake light is that often they interfere with the cruise control when the parking lights are on. That's because the chips are shared and there is voltage in the brake light circuit, tricking the computer into "thinking" that you're pressing the brakes. Found that out the hard way on my Elantra. I wonder if those sylvania bulbs would have the same issue? I wouldn't think so, but maybe you have a shot showing only the other two chips light up when you press the brake (while the parking lights are off)? That would show for sure whether or not any chips are shared.
Go to 3:14. That is the absolute best part when someone off camera says "I can't find it" when referring to the brake pedal. So cute. Thanks for making this video, very helpful.
I've got a 1974 Jensen Healey that is sorely lacking in the illumination department. You just helped me nail down the brake and marker light choices...next up...finding the best choice for 7" round LED headlights !!
Solid review. Im currently bulb shopping for my 2018 f-150. I had no idea they even made red l.e.d. bulbs for brake lights and this was a real eye opener for me. I definitely agree with your overall choice. Good work 👍✋👍✋
Another thanks for the post- I was having the exact same problem on a trailer I built. Showed exactly what the problem was, and the fixes. BTW, here in 2021, the bulbs you recommend are not on Amazon anymore- just the design from Sylvania that didn't work for your Supra. All of the links go to that model. But seeing what the issue was, and the great explanation was very helpful.
Never use white LEDs in a red housing. Also use aluminum tape whenever possible to maximize reflecting. Also a cool mod you can do is get 3 1/2 inch pvc pipe and cut it into rings and insert them into your lights you'll get an FC RX7 effect and it'll concentrate the light a bit more, making them appear brighter.
@June@97 no, but like I said, basically you just cut slices of PVC piping. Use a band saw to make even cuts. You remove your bulb holders and slide them in at an angle, and the diffuser sheet and taillight housings should hold them in place
Good info. Important note - ''your results may vary''. Always get out and decide for yourself! Some of the science behind choosing is - the Color spectrum. The lenses only allow (filter) a part of the spectrum to get through. The white LED does not have a consistently uniform Color spectrum. I'm not sure, but it's likely that lenses vary also. It's important to match the bulb to the lens. How? - Get out and observe! .... Also, white paint might have been better than chrome because white 'reflects' (subjective term) a large portion of the spectrum. Of course, the closer you get to a 'polished mirror' finish, the better.
6:58 was expected. It would appear that the Sylvania LED bulbs were designed with the idea that most cars use a reflector behind the bulbs, which would then reflect the light towards the red lens.
I also bought a very similar LED bulb for my front turning lights. I took it out as I noticed that there is little difference between when I use the turning signals. Took them out and replaced them with a more expensive but amazing LED bulbs from VLED.
Just bought some Sylvania's for my Toyota Starlet Glanza yesterday without doing research and i'm glad of the results because i ordered them all RED and AMBER. I'll have to change the reverse/license plate lights later on. Thanks a lot for the video!
You need to get a roll of heavy Aluminum Foil from the Grocery Store and make some Parabolic Reflectors by hand. All you need is a pair of scissors and some clear tape to make it hold it's shape. Works great, I've done it 3 or 4 times. Sometimes the stock reflectors are only silver, or white, "colored" plastic, with no actual chrome, which can be improved with Aluminum Foil and some glue. Sometimes crinkling-up the Aluminum Foil to give it some texture will actually improve light output over a smooth surface. Experiment, Aluminum Foil is super cheap, and you get a ton of it on each roll. .
You can still use the white ones, just put them in the reverse lamps. Then look for Amber ones for the turn signals and add an LED compatible flasher relay to counter hyper blinking.
That's what I was looking for. simple comparison, get to the point and very helpful. these videos need to be supported. Thank you for the video and for your time.
Thank you so much for posting this test of the different 1157 LED bulbs...I wasn't sure what to purchase until I saw your video. Sorry you spent all that money to do this test but it paid off in the end. And I'm sure you made a lot of people happy at your expense, saving them time and money and you may have saved someone from buying the ones your friend purchased, because I don't believe they are very safe either!! Now I'm going to get me the Sylvania 1157 Red bulbs. God bless you for sharing this...
Fantastic video! We learned that LED's with side projecting diodes, are designed for housings with chrome reflectors. Chrome paint is NOT chrome! LOL. RED LED's work better than white ones. The cheap-O LED's don't have much light change from running to brake. THAT is a big issue. I've been to that party myself. I don't know what it is, but nearly all those Chinese "bulbs" do that. Sylvania nailed it by wiring them up so more light up when brake is pressed. The cheapies, just use a dropping resister inside the bulb. I recently got a lot of 10 LED 1157's from eBay for $9.00 incl shipping! They are intended for boat and utility trailers with those round or square bolt-on housings. Since these housing usually do NOT have a reflector, these LED's have only a monolithic disc array all facing directly back with NO side emission. They are also the defacto bluish white color. Now....Since I learned my lesson on that little difference between running and brake light issue, I first tested one out by using a socket from an old car and my bench 12 volt supply. Yep! going from running to brake was hardly noticeable! When I powered up just one wire at a time, I noticed that the running light was actually brighter than the brake! Hmm. So, I reversed the supply lead and powered up the "brake" wire, then connected the "running" wire. OMG, now there was a significant change from running to brake! Concluded that the idiots wired the bulbs backwards! I filed a complaint and they finally admitted to a problem and issued me a full refund. So, what did I do? I carefully took each lamp apart, turned the wafer disc 180º, resoldered and bingo! They now work fine in my trailers! Yes, there is a decent difference from running to brake light now!
Wow. I went down this rabbit hole about 10 years ago with my Datsun 240z, and then a few years back again for my Nissan 300ZX. LED bulbs have come a long way in ten years. Another difficult task was to find an amber front turn LED bulb that was equivalent to the incandescent. I did find them, but, like you, went through several bulbs in the process. But the end result, especially in the decrease of amperage load on the system, is well worth it.Thanks for sharing!
Tony, thank you for your enlightening research. Well done my friend! Comparing the incandescent beside the various LED you tested, I was disappointed as well. Honestly, with the best Sylvania Red vs the standard OEM incandescent, I did not see enough difference in brightness to justify the extra expense. But again thank you for your great work!...well done and very objective!
You always match the bulb color to the lens color, it's how they're designed. Awesome video and thanks for making this! Always difficult when buying LED bulbs that aren't 194's
Great experiment! With your last test between the red vs white I think the white could have won if you didn't spray the housing on the right chrome/silver.
I agree that is playing with fire having the first and second bulb. But I would add some custom made reflector. The white ones are not brighter because the red lens filtered the white light reducing the amount of light visible while the red bulb had a red filter that did not filter any light making it brighter.
Thank you so much for this video. I'm tired of spending money on bulbs that don't perform. Your corncern about the difference between running lights and brake lights is also my concern. It's not safe having so little difference between the two. I've been looking for a bulb for my classic cars where only a couple light up for the running light and the rest for brake lights. Being in the heavy duty trade and seeing the different lights on the semis, I know that that style works best. So again thanks for taking the time and money to show everyone this. 👍👍
Interesting video and done in a good spirit. Confirms my own thinking: That it's not worth replacing the original lightbulbs. If you fit well designed ones from major manufacturers then... 1) they will hopefully be as reliable as the old incandescent lights you already had in your car. (but keep your receipts) 2) they will produce the same light output as the old incandescent lights you already had ( if you are lucky and their design matches your car 100%) 3) they will cost a lot of money. Of course you could just go with the badly designed stuff off e-bay which will fail within a couple of months and have been designed by someone who doesn't know about lighting, reliability, safety etc... There are a couple of applications where LED's could be useful 1) parking lights so they use less energy whilst they are on ( for old cars only ) 2) uprating lights, ie fitting a higher rated LED ie T6W rather that a T2W because you want more light and you know that the T6W LED is only really using 1W and therefore won't melt the fitting.
I had a travel trailer with dim tail/brake incadesent lights due to no reflectors. I glued a few cents worth tin foil behind the bulbs, being careful not to let the foil have any contact with bare wires etc. What a difference....way brighter...best 5 cents I've ever spent!
Really wish I had seen this vid before purchasing new LEDs for my '13 Corolla. I'm not sure now if the bulbs I ordered will have the same lighting issues as the first two tests. There was a lot of thought and planning (and money) was put into this video. Glad you found the right bulb in the end.
White LEDs wash out coloured lenses, so a red LED is superior in a taillight application. Brighter taillights are not a good thing for other road users at night as they are distracting and damage night vision. It's like following someone with their fog lights on. Brighter brake lights however, they're a winner every time.
Because the diodes light up instantly compared to the resistance needed to illuminate the filament in incandescent bulbs. Also, LED's don't reflect as incandescents do
True, TBH it means LED on brake lights is safer, than incandescent bulbs. It gives more reaction time for driver behind you. That's probably something you would like to invest if you like to be driving at dark
The difference is less than a tenth of a second. If someone is driving on that tenth of a second, he's already doing it wrong. You're going to be hit no matter what type of bulb you have.
From the looks of it. I am 100% certain that the reflector is inside of the tail light housing, not the cover. It's just like your head lights. Their reflectors are inside the housing/projector.
Thanks for testing out the various led’s! I was concerned on the brightness difference when brake light came on and obviously only one worked in your experiment
Thanks for making this video . I was searching for a while to get more info on switching to a led and the brightness difference , and didn't find much . Your video showed things I hadn't even thought about . You saved me money , I think I might try those amber 1157 led Sylvania bulbs
when you tested the 2nd set of LED bulbs, you were comparing them to 2 incandescent bulbs on the driver side lighting up when she hit the brakes, vs only the one (outside) LED bulb on the passenger side actually lighting up when they hit the brake peddle..
In older cars try something simpler .... change from 1157 to P21 5W Bulbs regular incondecent . I noticed ages ago that the European cars like VW's had brighter tail lights in traffic. A quick look at the Part shop revealed the VW's were running P21 5W Bulbs. Now I switch them when I'm dealing with the simple twist in bases. Cheapest upgrade !
Use the brake light LEDs from vLEDs. The V6 versions are very expensive, but they are worth it. They are incredibly bright. They have lifetime warranties and are reliable. They are definitely different in terms of brake light vs. driving light brightness. They are the only ones I use.
I appreciate you doing this study. I have to say I’ve decided to stay with incandescent after all of this as I see no improvement in intensity and for the cost I can replace several incandescents.
Thanks for spending money and time to make this. Also, thank you in the comments that clarified some details. In Canada the Sylvania bulbs are $50 plus 13% tax. LED has some benefits but it’s not worth 20x the price for me.
I tried a simular test I noticed that the type of plastic lens makes a difference, try a plastic lens that is made for led bulbs, it made a big difference, and make your own reflectors crumpled aluminum foil, GREAT VIDEO.
Good video, I agree with your decision for the red sylvanias. Did you notice when the l.e.d. were side by side with the incandescent bulbs, the reaction time was marginally quicker for brake response?
If I consider LEDs, I will consider the bulb at the 11:00 minute mark. Thanks for going through the tests. I would've not known the true results with the bulbs tested here.
Yup it's instant! Thats one of the nice things about LEDs. There isnt the delay of waiting for the filament to heat up and produce light, its just on and off.
+ they are more visible on the day time which leads to be more safety. They are not allowed in Germany because these people here love bureaucratic and to forbidden everything to the population but i don't give damn and installed them in MY car anyway.
Thanks for making this, always wondered, but you did the legwork!! Okay, so I keep most of my yodas stock ish, but when the next taillight bulb goes out, I’ll invest in these. 30 years old and I’ve only replaced 1 bulb in the rear! Uhh, taillight housing.
I had a set of those white Sylvanias (the last pair you reviewed) in a trailer. They were pretty much useless and you had to be really paying attention to see any difference between tail and brake. The trailer light housings had no reflectors and were just black. So I did the chrome paint thing. The difference was so minuscule. Either way, all that was visible was a faint, hollow 6-point-star pattern due to the Fresnel type taillight lenses. After a year, half of the led chips in one bulb were dead. I swapped over to a regular LED trailer light kit. Now, I have good bright taillights and brilliant brake lights.
Have you ever thought about aftermarket, custom lenses, that make the tail & brake lights, separate? Or modifying your stock wiring to do that? Like the last LEDs you tested, but it's a whole socket on each side, that stays off, until you press the brakes. The brake lights are a different pattern. Those are my favorite. They look great, and they're so noticeable. Someone has to be passed out drunk, asleep, or purposely trying to rear-end you.
When you compared the Sylvania red led to the white led the red was brighter because the white was a “cool white”. Cool White is not a bright light. Same applies for fluorescent tubes. They come in cool white, warm white, and bright white colors. Also when you painted your reflector chrome and it looked silver because the paint was just silver paint. My wife bought some brass and chrome paints in a craft store for a project and I was amazed how shinny they were. Both colors turned out very nice.
At 5:35 on the video, the bulb on the top is already lit up as a brake light. It looks as if the bulb is not put in correctly. The lower bulb looks to be working as intended.
Back in the day, a true 2057 was meant to address the difference between the tail and brake back in the day, since they realized it addressed a safety issue by increasing the contrast between the brake and tail light intensity.
Thanks for all the good info this video brings, I was also surprised the Red leds where actually brighter than the white, but we live and learn, I also 100% agree a 1157 stop and light bulb needs to have >at least< a 3 to 1 ratio in brightness, regardless of how bright the led is. Thx Paul (UK)
The Red taillight lens is designed to allow mostly Red light to pass through, hence a Red LED will pass most of its light through such a lens. White LEDs emit a broader spectrum of light and as a result a smaller fraction of their total light output will be seen through a Red lens. Result: Red LEDs will be brighter than their counterpart White LEDs through a Red lens. The same holds true for Amber bulbs through Amber lenses.
Thanks for making this video and using your hard earned money to test the different LED bulbs. The incandescent bulb projects the brightest beam inside the tail light housing and this is because the tail light housing was designed based on the specs of the incandescent bulb. Sure the LED bulb outputs a brighter beam in comparison to the incandescent bulb outside of the tail light housing but the LED bulb performs poorly inside the tail light housing. Even when using the red LED bulb, the incandescent bulb is brighter. Since the chrome spray didn't help much, try using flat white spray paint. I respect you for thinking about your safety and the safety of others and choosing a LED bulb that properly simulates the brightness difference when stepping on the brake pedal. Most car owners just focus on looks and install the incorrect brake LED bulb without thinking about safety at all. I recently ordered two sets of different brake 7440 red LED bulbs for my 2017 Accord, maybe i will post a video comparing the 7440 incandescent bulb with the red 7440 LED bulb. i am curious to find out if the LED bulbs will perform as good or better than the incandescent bulb.
I checked Sylvania specs on Amazon. Red LED goes behind Red lense. White LED behind clear lense. Amber LED behind amber lense. That would explain why the Red LED was brighter behind your red lense.
Just saw this video. A general rule for LED bulbs is use a colored bulb behind a colored lens, such as red led behind red lens. That's what emergency equipment installers do. It give you the best output of brightness/intensity. Keep up the good work.
Some do, unless you use the installer that upfitted my vehicle. ‘Eye roll’ lol
I was about to say I didn't how the red got washed out because of the first white leds.
The idea behind using the same color of LED chips behind colored lens is because unlike incandescent bulbs (which have quite a broad spectrum of light, ie. they actually shine more colors (orangfe, red, blue, yellow etc) with different intesity, due to principle on which they work, basically being a very hot wire) the led chips are actually quite good with having a narrow light spectrum. Meaning the red led chips have majority of their light output in red color, and only a little of other colors. The red lens basically work as a filter, so they block majority of other colors and only pass the red color.
That is why you have the best color accuracy and brightness using the same color led chip as the color of the lens. The transmission of the light is most efficient in that setup. While you can have a white led behind red lens, it will work, but the overall result will not be the best.
Chrysler van's (Caravans) taillights are LED, but they are red lights behind the lens.
Seriously dude, thank you so much for spending your money to find out what works best. You the real mvp!
Thanks man im glad i could help the community, thanks for watching!
@@PoorManMods I'm doing the same but when i find the best one i send back all the others to Amazon and have a full refund 😆
My oem "Made in Japan" 1157 and 1156 bulbs are still kicking after 30 years in the Supra. Great quality bulbs back then.
Damn
I bet they are just as bright if not brighter than brand new bulbs.
Still kicken?
@@onesikm3 Yup, still working fine. Only upgraded the headlights to led.
Everything was better back then
The lens will filter all light except red spectrum, so you lose brightness with a white bulb. Also white will look pink
Yeah that makes a lot of sense, thanks!
Nice information, I'd already bought red LED for the taillight
but the light clearly looked pinker with the red leds. i found the red color to be better with the white led but the light was brighter with the red led. 13:36
I've got JDM astar max in red and they are the best I've ever tried. Extremely bright and when they light up they are red red not pinkish red as you are correct white bulbs in red taillight housing looks pinkish.
Yes. That's why the original incandescent lights are white?.... @@jamesf9610
I sometimes use UL rated aluminum tape as reflectors. It’s my secret tip. They can withstand high temps and reflects light perfectly
Aluminum foil may work if it doesn't contact the electrical leads.
A lot of LED manufacturers suggest using red lights with red lenses. Because the white tends to look more pinkish because of the brighter white color.
But thank you for showing the differences in quality LEDs to cheap LEDs
I don't know if it's already been mentioned in one of the comments, but all the Sylvania LEDs were noticeably quicker to light than the incandescent. That's a big plus for a brake light. The other LEDs were not as quick as the Sylvanias (to my eyes), but were still quicker to light than the incandescent.
And I agree that you want the brightness of the brake lights to be discernably different from the regular running lights.
Great video! Glad I came across while search Amazon for LEDs. It's made a huge difference in what I'll buy.
White led are composite rgb chips, while red is just red. So you get more intensity with just red. Also as mentioned earlier the tail light housing acts as a filter letting only red go through
thats not true. Thats why RGBW exists.
You can buy a daylight color LED that isnt composed of a RGB chip.
The original post is very old, but I’ll correct it anyway. White LEDs are actually blue LEDs where the blue + UV light of the LED excite a phosphor material that glows with a white color (the yellow color of the LED is actually the phosphor). The output spectrum of a typical white LED is weak in the red and strong in the blue, so behind a red filter the light will be relatively weak. The light from a red LED passes through a red filter unfiltered.
Thanks for this video. I bought the Sylvania 1157r to swap out the all the stop light and running lights on the rear end of my car (2018 Hyundai)
The fast response of the brake light and how Sylvania handled the lower light output is what sold me.
3157 are twice as bright as 1157 and fit the same socket. So-called "OFF-ROAD" bulbs are exactly what we need for the street.
I had the exact same problem with a pair of led globes i bought on ebay. No difference between brake & tail lights. Dangerous for night time driving. Went back to standard globes. Thanks for the great advice, results are awesome. I'll try again. Cheers.
I had the EXACT same problem with choosing LED bulbs from the auto shop and getting disappointing results from the best brands. I'm glad I got to your video!
A couple of things - first up, I *think* the second set of bulbs you tested are "handed" LED bulbs. One pin goes through a voltage regulator, giving dim light for sidelights, the other pin goes straight to the LED array and has no voltage regulator. If you look at the test footage at 5:30, one bulb is brighter than the other. The dimmer bulb gets brighter when the brake is pressed, while the other bulb stays the same.
If you had rotated the brighter bulb 180 degrees and tried again, you might have found they work better. You might want to re-test them? I could be dead wrong, but I've had LED brake bulbs do this for me, and it confusilated me for a while.
The other thing is - the white bulbs probably are brighter (or equally bright) but your tail light glass is red. It filters out everything except red light. The rest of the light energy is wasted as heat within the plastic (they'll get a fraction of a degree hotter) when the light goes through the red coloured plastic. This happens with incandescent bulbs as well as LED's.
Red LED's only emit wavelengths of light in the red portion of the visible electromagnetic spectrum, which will mostly pass through the red plastic without being wasted as heat.
Third - if you've got a paper laminator, cut out circular pieces of aluminium foil with a hole in the middle just big enough to get the bulb through, then laminate them. Cut them out, but be careful to make sure there's no aluminium exposed at the edges (which could cause a short). The whole thing should be covered in lamination plastic. Put them on the bulbs, then put the bulbs in the sockets. Hey presto, reflectors for cheap.
I did it for some trailer lights and it improved the light output by about 25%.
Thank you that saves me money the cheap stock bulb performs the best.
Put aluminum tape in the housings.
i did and it didnt work the best lol
Was worth a shot I guess. Sucks it didn't work
No, use aluminum foil with double-sided tape. Foil is smoother and should reflect light better than aluminum tape.
There is a much much better chrome paint than what you used and it actually looks like a nice shiny pc of chrome and it works wonderful for such use.
Actually white paint works very good
I swapped back to my OEM units as certain led elements started to flicker as they started to fail. Just something to keep an eye out after awhile. Some vehicles will want a resistor if the lighting system is sensitive to voltages. It's been a couple years now, and perhaps the ones on the market are better hopefully. I've also been waiting to replace my interior lighting to LED just in case I have one of those "DOH!" moments of leaving them on all night. Which is why I have chosen not to do a review as of yet on my own personal channel. But great to see someone else providing their insights and product introduction to the various 1157's. Thank you. :) Cheers
People like you make life easier. Thank you 👍
Thank you!
My old RV has 3 tail lights on each side and I tried the cheap amazon LEDs and had the problem with the difference in brightness from running light to stop light not being very different. I'm glad I found your video. Thanks!
This is exactly the type of video I was looking for. That change between tail light and brake light makes all the difference. That will make or break that mod for me.
Thank you.I bought 1156 for my lawntractor headlights,and even as many leds that are on them,it's a whiter light,just not bright enough.The yellow light coming from the standard bulb goes about 4 ft, further.I'll look at the Sylvania options.
@ 14:23 - “ Which one would you pick? I know which one I would pick.”
I would pick the incandescents, because it doesn’t look like any of the LEDs you tested were any brighter, in taillight or brake light mode, than the standard incandescent bulbs. The LED reaction time from taillight to brake light is a little quicker, but if the LEDs aren’t brighter, why bother?
cbpitt01 Yeap leds in cars are a pain. Reaction time is the only advantage (and 3rd brake lite can usually do that task). LEDs in cars don’t even last longer than bulbs before they start to flicker and flash. Don’t waste your money guys! Standard is best.
I've noticed that they don't seem to last either. However, lately they have been made with heat sinks which seems to be the problem of all LED chips. They work well but need to vent the heat they generate. I just picked up some 1156 bulbs from Amazon that are designed for RVs and they are really nice quality and bright with a ceramic ring at the base of the bulb making it about 3/8" longer than a standard bulb.
$15 CAD for 2
www.amazon.ca/gp/product/B077GVCH56/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Found this while researching switching my 62 to LED.... this made me decide to stay with normal 1157s... even the reds don't look better than the left side in the video to me. Thanks for posting this.
Yeah, about that housing. I tested red LED bulbs in my Harley which has a chrome reflector surface. The LEDs each produce a point light source with parallel beams of light. When these beams reflect off of the chrome surface it's still a point of light that's been reflected. So I created a white reflective surface by installing self adhesive vinyl sheet. This was more effective as a reflector because it diffused the beams as it reflected them into the lens, thereby lighting up the entire lens, not just a single point on it. The lens then directs the light to the desired target. They're now a lot more visible. Also, I installed a unit that flashes the brake lights causing an attention getter.
Oh nice thats awesome!
Thanks for buying all these bulbs. They’re so expensive for what they are. You’re awesome
Thanks for watching
Man thank you... The ones I got from a well known online LED supplier did not have significant difference in brightness either and I almost got rear ended by an elderly woman with a lead foot. I just ordered mine.. Thanks for putting your cash into figuring this out for the rest of us. ..A grateful FB owner.
Thanks for watching! Glad I could help and glad you and the car are safe!
10:25 for the best lights
Freddy, the Supra is not dumb... There should be a reflector behind each tail light bulb. They're just missing on yours. I remember seeing them when I had mine and had to replace a bulb. Look it up and try to get them, they'll make a big difference with those Sylvanias.
I guess that makes sense, my supra is missing alot of things haha thanks man!
Poor Man Mods You're very welcome. Love watching Supra videos by you, even though it makes me miss mine dearly...
I have a 77 Toyota pickup and it has reflectors. Just went to LEDs and used the Zevo red for the brake lights. I also cleaned and polished the lenses real well. But also covered the reflector and panted the tan colored plastic housing gloss white. Remember gloss white reflects the most of the colors. I then plugged the socket holes with a small piece of paper town and cleaned the aluminum reflector, then sprayed it, and the new gloss white painted area, with the 2x gloss clear, to increase the shiny mirror effect.
@ KK-M5-E39 I have to do a "me too" on that. I had my old MK3 and after having all the mods done (lexus mod, hybrid turbo etc etc), it went for the head to be properly gas flowed and the mechanic (long story short) stole it. Police said they knew he had done it but not QUITE enough proof. Insurance paid out but only a tiny fraction of what the car was worth.
Miss the old girl so much.
The issue with bulbs that share the same chips for parking and brake light is that often they interfere with the cruise control when the parking lights are on. That's because the chips are shared and there is voltage in the brake light circuit, tricking the computer into "thinking" that you're pressing the brakes. Found that out the hard way on my Elantra.
I wonder if those sylvania bulbs would have the same issue? I wouldn't think so, but maybe you have a shot showing only the other two chips light up when you press the brake (while the parking lights are off)? That would show for sure whether or not any chips are shared.
Go to 3:14. That is the absolute best part when someone off camera says "I can't find it" when referring to the brake pedal. So cute. Thanks for making this video, very helpful.
Haha my ex girlfriend 🤣
I've got a 1974 Jensen Healey that is sorely lacking in the illumination department. You just helped me nail down the brake and marker light choices...next up...finding the best choice for 7" round LED headlights !!
Solid review. Im currently bulb shopping for my 2018 f-150. I had no idea they even made red l.e.d. bulbs for brake lights and this was a real eye opener for me. I definitely agree with your overall choice. Good work 👍✋👍✋
Helped me a whole bunch! Thank you! Got a 1965 Galaxie and a 1963 Fairlane Ranch wagon that will be getting LED upgrades.
Another thanks for the post- I was having the exact same problem on a trailer I built. Showed exactly what the problem was, and the fixes. BTW, here in 2021, the bulbs you recommend are not on Amazon anymore- just the design from Sylvania that didn't work for your Supra. All of the links go to that model. But seeing what the issue was, and the great explanation was very helpful.
Never use white LEDs in a red housing. Also use aluminum tape whenever possible to maximize reflecting. Also a cool mod you can do is get 3 1/2 inch pvc pipe and cut it into rings and insert them into your lights you'll get an FC RX7 effect and it'll concentrate the light a bit more, making them appear brighter.
Hm that is interesting, do you have pictures of that RX7 effect?
Poor Man Mods unfortunately I don't as I sold my last MKIII about 4 years ago, but it's easily removable. The rings wedge in without much hassle.
@@RazoE You should make a video explaining how to do this, it would be interesting to a lot of people I think, me included...
@@bodeine454 I did it about 15 years ago, so I don't have pictures, but it's really as easy as getting slices of PVC piping and sliding them in
@June@97 no, but like I said, basically you just cut slices of PVC piping. Use a band saw to make even cuts. You remove your bulb holders and slide them in at an angle, and the diffuser sheet and taillight housings should hold them in place
Well done. Thanks for using the scientific process and being thorough. This was very helpful.
Good info. Important note - ''your results may vary''. Always get out and decide for yourself!
Some of the science behind choosing is - the Color spectrum. The lenses only allow (filter) a part of the spectrum to get through. The white LED does not have a consistently uniform Color spectrum. I'm not sure, but it's likely that lenses vary also. It's important to match the bulb to the lens. How? - Get out and observe! .... Also, white paint might have been better than chrome because white 'reflects' (subjective term) a large portion of the spectrum. Of course, the closer you get to a 'polished mirror' finish, the better.
6:58 was expected. It would appear that the Sylvania LED bulbs were designed with the idea that most cars use a reflector behind the bulbs, which would then reflect the light towards the red lens.
I thought so too... but they’re garbage even in a reflective housing
I also bought a very similar LED bulb for my front turning lights. I took it out as I noticed that there is little difference between when I use the turning signals. Took them out and replaced them with a more expensive but amazing LED bulbs from VLED.
Good video. 4:57 looks like the inboard passenger side bulb is seated wrong, or backwards. It wasn't cycling.
Thank you for a great comparison, your time and expense is much appreciated.
Thanks!
Just bought some Sylvania's for my Toyota Starlet Glanza yesterday without doing research and i'm glad of the results because i ordered them all RED and AMBER. I'll have to change the reverse/license plate lights later on. Thanks a lot for the video!
Glad I could help!
You need to get a roll of heavy Aluminum Foil from the Grocery Store and make some Parabolic Reflectors by hand.
All you need is a pair of scissors and some clear tape to make it hold it's shape.
Works great, I've done it 3 or 4 times.
Sometimes the stock reflectors are only silver, or white, "colored" plastic, with no actual chrome,
which can be improved with Aluminum Foil and some glue.
Sometimes crinkling-up the Aluminum Foil to give it some texture
will actually improve light output over a smooth surface.
Experiment, Aluminum Foil is super cheap, and you get a ton of it on each roll.
.
You can still use the white ones, just put them in the reverse lamps. Then look for Amber ones for the turn signals and add an LED compatible flasher relay to counter hyper blinking.
That's what I was looking for. simple comparison, get to the point and very helpful. these videos need to be supported. Thank you for the video and for your time.
Thank you so much for posting this test of the different 1157 LED bulbs...I wasn't sure what to purchase until I saw your video. Sorry you spent all that money to do this test but it paid off in the end. And I'm sure you made a lot of people happy at your expense, saving them time and money and you may have saved someone from buying the ones your friend purchased, because I don't believe they are very safe either!! Now I'm going to get me the Sylvania 1157 Red bulbs. God bless you for sharing this...
Glad I could help! Thanks for watching!
Fantastic video! We learned that LED's with side projecting diodes, are designed for housings with chrome reflectors. Chrome paint is NOT chrome! LOL. RED LED's work better than white ones. The cheap-O LED's don't have much light change from running to brake. THAT is a big issue. I've been to that party myself. I don't know what it is, but nearly all those Chinese "bulbs" do that. Sylvania nailed it by wiring them up so more light up when brake is pressed. The cheapies, just use a dropping resister inside the bulb. I recently got a lot of 10 LED 1157's from eBay for $9.00 incl shipping! They are intended for boat and utility trailers with those round or square bolt-on housings. Since these housing usually do NOT have a reflector, these LED's have only a monolithic disc array all facing directly back with NO side emission. They are also the defacto bluish white color. Now....Since I learned my lesson on that little difference between running and brake light issue, I first tested one out by using a socket from an old car and my bench 12 volt supply. Yep! going from running to brake was hardly noticeable! When I powered up just one wire at a time, I noticed that the running light was actually brighter than the brake! Hmm. So, I reversed the supply lead and powered up the "brake" wire, then connected the "running" wire. OMG, now there was a significant change from running to brake! Concluded that the idiots wired the bulbs backwards! I filed a complaint and they finally admitted to a problem and issued me a full refund. So, what did I do? I carefully took each lamp apart, turned the wafer disc 180º, resoldered and bingo! They now work fine in my trailers! Yes, there is a decent difference from running to brake light now!
Wow. I went down this rabbit hole about 10 years ago with my Datsun 240z, and then a few years back again for my Nissan 300ZX. LED bulbs have come a long way in ten years. Another difficult task was to find an amber front turn LED bulb that was equivalent to the incandescent. I did find them, but, like you, went through several bulbs in the process. But the end result, especially in the decrease of amperage load on the system, is well worth it.Thanks for sharing!
Thanks for watching!
Tony, thank you for your enlightening research. Well done my friend! Comparing the incandescent beside the various LED you tested, I was disappointed as well. Honestly, with the best Sylvania Red vs the standard OEM incandescent, I did not see enough difference in brightness to justify the extra expense. But again thank you for your great work!...well done and very objective!
You always match the bulb color to the lens color, it's how they're designed. Awesome video and thanks for making this! Always difficult when buying LED bulbs that aren't 194's
You're correct. The parking lights should standout when braking IMO. I was also surprised that the red bulbs were btighter than the white leds.
This is so dope, thanks for doing such a detailed and comprehensive breakdown of each bulb - taking one for the rest of us!
Thanks for watching!
Great experiment! With your last test between the red vs white I think the white could have won if you didn't spray the housing on the right chrome/silver.
Finally!! Your the video I've been looking for! An actual in the lens housing comparison of LEDS.Thank you for your time and money spent.
I agree that is playing with fire having the first and second bulb. But I would add some custom made reflector. The white ones are not brighter because the red lens filtered the white light reducing the amount of light visible while the red bulb had a red filter that did not filter any light making it brighter.
Thank you so much for this video. I'm tired of spending money on bulbs that don't perform. Your corncern about the difference between running lights and brake lights is also my concern. It's not safe having so little difference between the two. I've been looking for a bulb for my classic cars where only a couple light up for the running light and the rest for brake lights. Being in the heavy duty trade and seeing the different lights on the semis, I know that that style works best. So again thanks for taking the time and money to show everyone this. 👍👍
Interesting video and done in a good spirit.
Confirms my own thinking: That it's not worth replacing the original lightbulbs.
If you fit well designed ones from major manufacturers then...
1) they will hopefully be as reliable as the old incandescent lights you already had in your car. (but keep your receipts)
2) they will produce the same light output as the old incandescent lights you already had ( if you are lucky and their design matches your car 100%)
3) they will cost a lot of money.
Of course you could just go with the badly designed stuff off e-bay which will fail within a couple of months and have been designed by someone who doesn't know about lighting, reliability, safety etc...
There are a couple of applications where LED's could be useful
1) parking lights so they use less energy whilst they are on ( for old cars only )
2) uprating lights, ie fitting a higher rated LED ie T6W rather that a T2W because you want more light and you know that the T6W LED is only really using 1W and therefore won't melt the fitting.
I had a travel trailer with dim tail/brake incadesent lights due to no reflectors. I glued a few cents worth tin foil behind the bulbs, being careful not to let the foil have any contact with bare wires etc. What a difference....way brighter...best 5 cents I've ever spent!
Really wish I had seen this vid before purchasing new LEDs for my '13 Corolla. I'm not sure now if the bulbs I ordered will have the same lighting issues as the first two tests. There was a lot of thought and planning (and money) was put into this video. Glad you found the right bulb in the end.
good test- think I stay with incandercent bulb for now
White LEDs wash out coloured lenses, so a red LED is superior in a taillight application.
Brighter taillights are not a good thing for other road users at night as they are distracting and damage night vision. It's like following someone with their fog lights on.
Brighter brake lights however, they're a winner every time.
Also if you notice the LED is on and off quicker then the incandescent bulb.
I noticed that as well!!!
Because the diodes light up instantly compared to the resistance needed to illuminate the filament in incandescent bulbs.
Also, LED's don't reflect as incandescents do
True, TBH it means LED on brake lights is safer, than incandescent bulbs. It gives more reaction time for driver behind you. That's probably something you would like to invest if you like to be driving at dark
The difference is less than a tenth of a second. If someone is driving on that tenth of a second, he's already doing it wrong. You're going to be hit no matter what type of bulb you have.
@@bigbill2444 If you're going 100km/h that's almost 3 meters
I'm very impressed with your effort. Thank you!
i've been staring at bulbs for weeks to put on my bike. thank you for solidifying my choice.
From the looks of it. I am 100% certain that the reflector is inside of the tail light housing, not the cover. It's just like your head lights. Their reflectors are inside the housing/projector.
Thanks for testing out the various led’s! I was concerned on the brightness difference when brake light came on and obviously only one worked in your experiment
sylvania ZEVO are the best imo. They are not only white, also red and amber. The red are a special diode, super bright
I agree. I've had them on my 2011 Cruze for over 3 years now and not a single problem yet. Money well spent.
@@salvatorecasto1184 yup! Pricey but worth every penny. Definitely stand out and help stop rear enders
I like them for the visual as much as the brightness, probably more
Thanks so much for your research. I chose the white LED one.
A man of practical science. I salute you!
Just FYI, white is the most reflective surface color, the only thing more reflective is a mirror finish.
I got red LEDs a few years back and they were supper dim. This blew my mind at the end.
Thanks for making this video . I was searching for a while to get more info on switching to a led and the brightness difference , and didn't find much . Your video showed things I hadn't even thought about . You saved me money , I think I might try those amber 1157 led Sylvania bulbs
when you tested the 2nd set of LED bulbs, you were comparing them to 2 incandescent bulbs on the driver side lighting up when she hit the brakes, vs only the one (outside) LED bulb on the passenger side actually lighting up when they hit the brake peddle..
In older cars try something simpler .... change from 1157 to
P21 5W Bulbs regular incondecent .
I noticed ages ago that the European cars like VW's had brighter tail lights in traffic.
A quick look at the Part shop revealed the VW's were running P21 5W Bulbs.
Now I switch them when I'm dealing with the simple twist in bases. Cheapest upgrade !
Use the brake light LEDs from vLEDs. The V6 versions are very expensive, but they are worth it. They are incredibly bright. They have lifetime warranties and are reliable. They are definitely different in terms of brake light vs. driving light brightness.
They are the only ones I use.
I appreciate you doing this study. I have to say I’ve decided to stay with incandescent after all of this as I see no improvement in intensity and for the cost I can replace several incandescents.
The red led works way better in red lenses that white leds.
Yup!
Thanks for spending money and time to make this. Also, thank you in the comments that clarified some details. In Canada the Sylvania bulbs are $50 plus 13% tax. LED has some benefits but it’s not worth 20x the price for me.
And they will fail long before their supposed 25-50k hrs lifespan rating.
I tried a simular test I noticed that the type of plastic lens makes a difference, try a plastic lens that is made for led bulbs, it made a big difference, and make your own reflectors crumpled aluminum foil, GREAT VIDEO.
Good video, I agree with your decision for the red sylvanias. Did you notice when the l.e.d. were side by side with the incandescent bulbs, the reaction time was marginally quicker for brake response?
Try using HVAC reflective tape to make your stock housings bounce the light thru the lens..
If I consider LEDs, I will consider the bulb at the 11:00 minute mark.
Thanks for going through the tests. I would've not known the true results with the bulbs tested here.
Amazing how much faster the brake light turns on with the LED’s
Yup it's instant! Thats one of the nice things about LEDs. There isnt the delay of waiting for the filament to heat up and produce light, its just on and off.
Poor Man Mods that alone is worth the swap imo
the quick response time was the reason I went for LEDs
Yup!
+ they are more visible on the day time which leads to be more safety. They are not allowed in Germany because these people here love bureaucratic and to forbidden everything to the population but i don't give damn and installed them in MY car anyway.
Fantastic video. You set up the tests beautifully! Great job, PMM!!! Product specifcations and quality DO matter. God bless!
thank you!!
I noticed the white bulbs you used say "cool white". In my experience cool white is a lower brightness of white.
The bulb on 10:30 is off-road ONLY, it's a 35W brake light.
Get the aglind as I did, very good.
Thanks for making this, always wondered, but you did the legwork!!
Okay, so I keep most of my yodas stock ish, but when the next taillight bulb goes out, I’ll invest in these. 30 years old and I’ve only replaced 1 bulb in the rear! Uhh, taillight housing.
I had a set of those white Sylvanias (the last pair you reviewed) in a trailer. They were pretty much useless and you had to be really paying attention to see any difference between tail and brake. The trailer light housings had no reflectors and were just black. So I did the chrome paint thing. The difference was so minuscule. Either way, all that was visible was a faint, hollow 6-point-star pattern due to the Fresnel type taillight lenses. After a year, half of the led chips in one bulb were dead. I swapped over to a regular LED trailer light kit. Now, I have good bright taillights and brilliant brake lights.
Have you ever thought about aftermarket, custom lenses, that make the tail & brake lights, separate? Or modifying your stock wiring to do that? Like the last LEDs you tested, but it's a whole socket on each side, that stays off, until you press the brakes. The brake lights are a different pattern. Those are my favorite. They look great, and they're so noticeable. Someone has to be passed out drunk, asleep, or purposely trying to rear-end you.
When you compared the Sylvania red led to the white led the red was brighter because the white was a “cool white”. Cool White is not a bright light. Same applies for fluorescent tubes. They come in cool white, warm white, and bright white colors. Also when you painted your reflector chrome and it looked silver because the paint was just silver paint. My wife bought some brass and chrome paints in a craft store for a project and I was amazed how shinny they were. Both colors turned out very nice.
I'm with you pal, I want to see the differance.
Should have tried the Philips LED bulbs. They are great. Brighter the the Sylvania at least in the 194/921 bulbs
Aren't Philips and Sylvania the same? Perhaps 'different' in production facilities but possibly the same in the actual manufacturing processes.
At 5:35 on the video, the bulb on the top is already lit up as a brake light. It looks as if the bulb is not put in correctly. The lower bulb looks to be working as intended.
Yep looks like one bulb defective absolutely no change when brake is applied. Junk bulb 4 sure nice catch.
Great video, good to know not all LEDs are created equal.
I'll go with the red Sylvania you have recommended. Thanks.
Back in the day, a true 2057 was meant to address the difference between the tail and brake back in the day, since they realized it addressed a safety issue by increasing the contrast between the brake and tail light intensity.
Thanks for all the good info this video brings, I was also surprised the Red leds where actually brighter than the white, but we live and learn, I also 100% agree a 1157 stop and light bulb needs to have >at least< a 3 to 1 ratio in brightness, regardless of how bright the led is.
Thx Paul (UK)
Thank you!
The Red taillight lens is designed to allow mostly Red light to pass through, hence a Red LED will pass most of its light through such a lens. White LEDs emit a broader spectrum of light and as a result a smaller fraction of their total light output will be seen through a Red lens. Result: Red LEDs will be brighter than their counterpart White LEDs through a Red lens. The same holds true for Amber bulbs through Amber lenses.
Yup!
Thanks for making this video and using your hard earned money to test the different LED bulbs. The incandescent bulb projects the brightest beam inside the tail light housing and this is because the tail light housing was designed based on the specs of the incandescent bulb. Sure the LED bulb outputs a brighter beam in comparison to the incandescent bulb outside of the tail light housing but the LED bulb performs poorly inside the tail light housing. Even when using the red LED bulb, the incandescent bulb is brighter. Since the chrome spray didn't help much, try using flat white spray paint. I respect you for thinking about your safety and the safety of others and choosing a LED bulb that properly simulates the brightness difference when stepping on the brake pedal. Most car owners just focus on looks and install the incorrect brake LED bulb without thinking about safety at all. I recently ordered two sets of different brake 7440 red LED bulbs for my 2017 Accord, maybe i will post a video comparing the 7440 incandescent bulb with the red 7440 LED bulb. i am curious to find out if the LED bulbs will perform as good or better than the incandescent bulb.
I checked Sylvania specs on Amazon.
Red LED goes behind Red lense.
White LED behind clear lense.
Amber LED behind amber lense.
That would explain why the Red LED was brighter behind your red lense.
Yup! Science!