Ebay $1.50 Filament LED lightbulb teardown (2W)
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- Опубліковано 2 гру 2024
- Teardown of a filament LED lightbulb from Ebay for $1.50 including shipping. Rated 220V 50Hz, the nominal power is 2W, real power is cca 1.6W, it has a E14 screw base. It is quite bright and looks nice, but there's no fuse in it. There's also no filter capacitor, so it has a lot of 100Hz flicker (not visible to the human eye unless you move it fast). It has a capacitor dropper in it with a 330nF capacitor, 1M discharge resistor and 1k inrush resistor. The 330nF multi layer ceramic capacitor looks quite small for the mains voltage.
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I am addicted to your video
don't ever quit uploading videos. u will go far
Thanks :) I hope so. Right now I'm working on another video.
Hi dear ,
This is Rsoe from Bofa Photoelectric Technology Co.,Ltd
We are one of renown LED bulb/filament manufacturing company in China,headquartered in Hong Kong. We’ve been in the business for over 20 years of hands on experience in manufacturing filament bulb，
Our Products are CE ROSH，UL and so on ,Appendix Certified, and we are well trained on quality maintenance.
@@DiodeGoneWild yea,I saw your video rewinding the "transformer" from the 600w power supply
According to Big Clive, that type of lamp is filled with helium because it is the best gas for getting heat from the LEDs to the glass envelope.
Clear, concise, and informative. Two thumbs up and thank you!
Where can I send you a pair of protective gloves Mr Diode? Great video thank you!
I have several of these in the 4w variety, and they all seem to work so far. Good to know they actually draw the current they say they do.
They are COB LEDs. The factory probably has used old filament bulb machines and that’s why it is glass and has the old fashioned construction. I like these type of bulbs and I have changed almost all my home’s lights to LED. In this bulb there are no interferencies as there isn’t switching power supply and the construction is simple and cheap.
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Except these non-switching LEDs flicker as fuck at 100 or 120 Hz.
I found that if you switch it on, unscrew it then retighten it again doesn’t flicker anymore
From the video it seems you're just guessing that the 1k resistor is on the secondary side, behind the rectifier. I would have guessed the same. But I agree with you that the other position is just as good for current limiting purposes, and better when also used as a fuse.
The CAPACITOR is the current limiter.
How you made that powermeter out of cheap multimeter?
I bought one of these lamps and it failed at something over 350V~ (I had a few fluorescent ballasts connected in series with the lamp - 3 paralleled 40W ballasts connected in series with the lamp in order to prevent damage to my variac if the lamp went short, so maybe the actual voltage across the lamp was a bit higher due to the ballasts forming an LC circuit with the capacitor inside the lamp), after a short period of time, the capacitor broke down and the LED strings burnt out.
wish someone would open up one that is dimmable.
This one is dimmable.
Looks like a nice "belb".
thnx for this video. i learnt some very good ideas
Love this guy
Thanks....that taught me heaps. Pity I'm so close to the grave, it would have been good to know this when I could have used it.
Another little nice video
I bought six of them in lidl, livarno brand in other variant, (various shape of bulb) warm white but only 4W/E27 4filament, 2W/E14 2filament all of them because they don't have more watts that year. Light was poorly weak and all lightbulb go wrong in few month.
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Can someone tell me what times 10 range means? Ive looked it up and couldn't find anything
it probably means it is 10 times sensitive
One end of the filaments is normally marked with a tiny hole. Is it plus or minus?
It's definitely a plus. It lets you find the polarity.
amazing stuff!
how are you testing the wattage? where are you plugging in the MM
Connect in series with power with bulb select ac 20/10A in MM and multiply amps and voltage. Or buy MM with wattage meter
He modified his power strip to measure power. He is using the multimeter just as a display.
@@ManjuKotekal46 Just multiplying the current with voltage won't give you active power, it will give you apparent power as it is an A. C. circuit.
Oniruddho Alam oh my god i dint know wow thanks
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Yea I noticed that flicker the first time I got one, deal breaker.
great video
From what I understand the Filaments are rated at 3 volts each, for a total of 6 volts for 2 pair. The 4 pair are rated at 12 volts total. I guess there is a step down transformer to bring it down to 6 volts.
You understand wrong then. Watch the video. " step down transformer" ???
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
good job
These bulbs are JAY ARES lights that last short
Why is it flickering
$1.5 for 1.5 watts
I forgot it was an LED light until I saw the lines on the screen
Hi dear ,
we are especially making the filaments led lighting ,also deal in led external lighting fittings。WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Diode Gone Wild
The capacitor is 400volts
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
FULL BRIDGE RECTIFIER.
Who remembers the old Charles bronson movie where he is a hit man and he takes the glass off the light bulb and fills it with petrol or similar and then he screws the bulb back into the socket in the ceiling !
Hhmmmm boom it went ,when turned on!
I forget the name of the movie ,but its Charles bronson
I think it was probably “The Mechanic” but don’t remember that method but it’s years since I saw the movie.
Richard Anderson ,
Yep thats the one, i saw it a long time ago, my taste in movies has change over 20 years!
Jak se ty "filamenty" zahřívají při jmenovitém proudu? Vždycky mě zajímalo, jak je u těhle LED vyřešeno chlazení.
Ten kondenzátor je masakr. Nejsem si jistý, jestli vůbec existujou keramické SMD kondenzátory na síťové napětí, moc bych tomu nevěřil.
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Often is Helium or nitrogen in it
@@alex_lightning4523 - NEVER EVER is there special gas (like Helium or Nitrogen) inside.
Well, actually there is a gas.... it's called "Chinese AIR".
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Wish they wouldn’t make the filament so long. They should make them short and in the center of the bulb, like traditional incandescent bulbs
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
I had a problem with some similar bulbs, with the E27 socket. Someone called me to replace some bulbs, I would replace them and the surprise was that they had light intensity drops, from time to time. I told him the bulbs were to blame, they did not have enough filtering. Bulbs were bought from a local supplier and, as the owner said, they were not cheap at all.
costara
It's a daily process for me to change capacitor's of lamps with bad filtering low value of capacitors
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
helium gas inside bulb to remove heat
Thx for the teardown video. I do love these filamentary LED lamps. They have a great angular light distribution and simple circuitry.
I read that the gas in the envelope is to dissipate the heat of the LED strip. Here is an excerpt from this US patent application.
Gas cooled led lamp
US 20130271972 A1
A thermic constituent in addition to the gas can also be included. In some embodiments, the gas is at a pressure of from about 0.5 to about 10 atmospheres. In some embodiments, the gas is at a pressure of from about 0.8 to about 1.2 atmospheres. In some embodiments, the gas is at a pressure of about 2 atmospheres or about 3 atmospheres.
In some embodiments, the gas in the enclosure has a thermal conductivity of at least 60 mW/m-K. In some embodiments, the gas in the enclosure has a thermal conductivity of at least 150 mW/m-K. In some embodiments, the gas is or includes helium. In some embodiments, the gas is or includes helium and hydrogen. In some embodiments, the gas includes a chlorofluorocarbon, a hydrochlorofluorocarbon, difluoromethane, pentafluoroethane or a combination of these gasses.
@@dan2800 - you win the award for most useless, idiotic comment on UA-cam.
Yoo break him farkin'!
LOL you`re kidding with the vacuum shit right ? It would be a nice add to a zero cooling system like this bulb , to completely eliminate the possibility of cooling those LEDs :)))
If it was a little bit biger it will be 630v if it vas a little bit small it was it for 250v
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
Also big problem is no heatsink at all so low life span.
These led chips actually dont get as hot as those proper buck regulated leds
Filament LED bulbs don't get as hot, because the control circuit is inside the screw base and the bulb is usually filled with a conductive gas that helps with cooling. If your regular LED bulbs fail often, try filament LED bulbs.
👍👍👍
i think it looks nicer than most led bulbs, closer to incandecent.
Im supprised it is glass and sealed, cant see the point of the sealing :-/
Have you been watching BigClive ?, your diagram looks very similar to the way clive would draw it :-D.
Just need a big beard now ha ha :-D
I think they are reusing machines they had for making classic tungsten lightbulbs.
I havnt switched to led lighting, i dont trust leds at high power to last.
i still use cfl types.
To me, a led is a dim glowing light on a dvd player to say its on.
Yes im an old bastard LOL :D
I also mostly use halogen lamps, CFL's or even the flashing and clicking fluorescents with that heavy metal brick in it :).
I also was skeptical of LED filament bulbs after seeing all the weird SMD variations which always weighed a ton and died too early without ever meeting their lighting claims. But they work. I have had several running around the house now, and there has been no light output decrease, and if you get ones with capacitors on the bottom, then they do not strobe much or at all.
Look at it this way, the new CFLs fail all the time due to one transistor being under rated. they are almost impossible to get apart and thus when they fail the mercury in them goes to a landfill. considering how popular CFLs are that is a huge amount of mercury. the old CFLs might have used more mercury, but some are still running to this day, so they have a much lower environmental impact.
If you get these bulbs on ebay they are absurdly cheap and are extremely easy to get a refund on if they do not deliver. how can you lose?
Yes i agree :-D, i have a house full of folded flourescent ccfl bulbs, so far ive had only 2 fail in 5 years, but (and there allways is a but) i dont leave them on all the time lol.
One was in my front room and it died, so i ripped it apart and replaced a known dodgy capacitor, all fine again :-).
Led lights are getting better, early versions just didnt last, i think they used too few leds and over drove them, more leds driven at a lower level are better :-D
How old are you and where are you from? Italian American???
czech street
Hidear
We are one of renown LED bulb/filament manufacturing company in China
WhatsApp /WeChat :8615877138240
Email:Rose-Wei@bofabulb.com 1040307158@qq.com
Website :www.bofabulb.com
How to burn your home? Just go plug with negatife and positive connected with no circuit breaker and get your hot wire into wood nearby your window
Very low Price
I am glad to know about you you are very professional on led lighting ,and LED downlighting is also one of your main products ,then may I ask do you import goods from china ?if yes ,then would you mind I sharing some of our popular products with you ?Actually ,we are a professional manufacturers specialized in LED lighting with 14experience ,maybe we would so sth for you ,do you have any interested ?
Hope we can have a chance to cooperate well in the future .
Hey diodegonewild can you be my friend please?
LOL
@@Zebra_Paw lmao hes mad
@@franzliszt8576 i wouldn't go that far... he is just... TROLLING!
It doesn't need headsink !
The 1k resistor has to be where it is because it's a voltage dropper
Make a intro for ur vids. It can be about exploding diodes because ur Chanel name is diodes gone wild
Don´t do it, I will skip it !
His channel is fine without intro intros are supee annoying
HELLO MY FRIEND J ATTEND TOUJOURS MES REPONSE A MES QUESTION THANK YOU
Kid asks his dad for hand lotion
What the hell
He sounds more like a high school girl than an high school girl
Samsung and a few other brand made 5000mah 18650 batteries that are true and tested
Nonsense.