@diodedynamics Hi. I have been waiting for a review and comparison of the SL2 H1 bulb as this one is by far the most controversial one. Most manufacturers like honda required some sort of adapter with the H1 bulb. That's why yours are the only reputable brand H1 in compact form on the market. My 06 CR-V uses two pairs of H1 for high and low beams. I would appreciate it if you guys made a video about the H1 SL2 comparing it to the halogen. I already have them in the shopping cart. Thanks
Now even if it’s not DOT approved, even if u say not good to put led bulbs in a low beam headlights to use in an area of no lights or city lights. We still would rather upgrade led bulbs on either projector or reflector. No matter what. It’s a huge safety benefits to see better and be seeing better. In our states, we have no issues at all putting led bulbs in projector or reflector headlights.
@@Mr_Ruhl people complain about any led bulbs that’s 3000 lumens u come across or over 3000 lumens per bulb is illegal. That’s why. But I agree with u as well. No cop will ever pull u over for that, as long as u aim correctly and fix the orientation correctly. It’s a no problem:
Basically they stand behind their product, which means they know this will truly last for a very very long time. And if anything goes wrong, they will be able to replace it. At anytime
So, a friend of mine (we're engineers) asked me around 2015 about the feasibiilty of an LED replacement bulb for headlights. I told him don't do it, the technology isn't there. It still really isn't - but it's close-ish. What you don't want is a diode hanging way out there on the filament location. Instead, you want a fiber coupled blue laser, with the PHOSPHOR conversion out where the filament is (talk to a company called Intematix, who make inorganic phosphors for light conversion. This means you can get the heat down to the base, where there is more area you can use for dissipation without obstructing the light distribution field (you can still reject all the heat into the housing). Imagine having a fiber that is the shape of a filament, covered with the phosphor in about the original dimensions of the filament, and the heat all at the base where it can be rejected into the housing. Similar to the signal bulbs - "there was an attempt"... the Xenon Depot 7443 XTREME VF bulbs (no affiliation, I bought some, wasn't happy), try to use a light pipe to move the LED parts down out of the way, but IMHO they didn't "go big" enough. Back in 2020 I recommended to them making the light pipe longer so they could replace the bulb base and put both the driver and heatsink in it, nothing ever came of that from them. Diode Dynamics is one of a the few LED bulb manufactuers I've seen using an integration sphere to measure light output - I can pretty much gaurentee that none of the Chinese bulbs do that. But I'm still unhappy with amber bulb intensity in daylight. Best LED replacement I've used has ben a Whelen "factory option" from Ford in my 2015 Police Interceptor - they have somethign they called the "LED Front Lighting Solution" which included LED hide-away strobes, but the amber turn signals had to be integrated into the front firing white strobes in the turn signal location. not only did Whelen nail the bright/dim ratio so that YOU CAN ACTUALLY TELL THE DIFFERENCE, they got the bright output correct.
Looks promising. A few questions... What's the CRI? The rated luminous flux of 2400 lumens-is that RAW lumens, or EFFECTIVE lumens? Do you have any plans for warmer color temperatures like 4000K? Thank you
CRI is the color rendering index. Scored from 0 to 100. At 0 all colors look the same, at 100 actual true color of the object is revealed. Like daytime on a sunny day. You get the true color of grass, trees, rocks, animals, ect. The closer the score to 100, the better. Eg. At night, you will pick up a deer in dew covered grass in a ditch way better, with a cri that is 100 than say an light that has 50 or 60 CRI.
@sherlock_homeslice sorry, misread your comment. As for sl2 CRI rating, I am not sure. That would be interesting to find out. I personally have only seen some really high quality leds in the past have a maximum of 70 CRI, but that was a couple years ago. I would hope that Diode Dynamics would have at least that at minimum. Hopefully they will get back to these comments and answer them.
Hey there! At Diode Dynamics, we prioritize the performance characteristics most critical to automotive safety and effectiveness in our lighting products. CRI is less relevant in automotive lighting, where the focus is on visibility, beam pattern, and luminous intensity to ensure safety under various driving conditions. Automotive standards emphasize these aspects rather than color accuracy, as nighttime visibility relies more on light intensity and distribution than on color rendition. Thus, we do not publish CRI values because they do not provide meaningful information in the context of automotive lighting applications. Regarding the output - the 2400 lumens is a measured/effective lumen measurement per bulb. Though we don't have any plans for other color temperatures at this time, we will suggest it to our team for you! Hope this answers your questions!
And yes I’m a huge fan of any type of high quality reputable brand led bulbs way more than HID. So I already subscribe to u guys. I’m seeing better potential than ever before now. ❤️🔥❤️🔥❤️🔥
I love all the videos you guys put out. Not just because I’m affiliated with you guys, but the transparency you give as to specs and the design/dimensions is unmatched.
We have not had any reports of radio interference on our SL2/SL2 Pro LED replacement bulbs on a 2019 WRX. Diode Dynamics offers a 30-day return policy that includes a free return label and no restocking fee if you want to give these a try!
@@diodedynamicswill these still give the bulb out warning on finicky bcm model vehicles like fords and Chryslers. I bout a pair of the sl1 and every time I turned them on I would get bulb out warnings every 5 seconds so I pulled them years ago and put them in a box.
Certainly! While we don't have confirmed data on the MTBF (Mean Time Between Failures) of the top-sided cooling fan in the SL2 Pro, we stand behind our commitment to quality with a lifetime warranty on these bulbs. This ensures that regardless of which component might require replacement first, you'll have peace of mind knowing that we'll support you for the long haul.
Question! Are you working on a dual fan model? Putting the fan above the LED is genius and I wonder just how much brigher and efficient a model with a traditional fan 'base' + this new fan would be !
Any beam pattern views with the sl2 pro on 4th gen ram with the quad headlight. Also does the high beam led fit in the factory housing with the dustcap. I personally have a lot of your products. Fantastic.
We don't have any output shots on that headlight setup specifically, but you're welcome to try them out! We offer free returns with any order of $50 or more, within 30 days from the date of delivery. No restocking fees, no administrative fees, no return shipping fee for US customers, and no hassle! www.diodedynamics.com/returns-and-exchanges
The focus of the light is generally much better, however this all depends on the housing they are installed in. We'll work on getting better comparison images in several housings in the near future! Stay tuned.
If you have have halogen factory headlights, the low beam will be H11 and the high beam is 9005. We offer both on our website! www.diodedynamics.com/products/led-bulbs/foglight-drl.html
I order the slf fog lights in cool white but When I got them they said I got an upgrade the sl2 instead but when I install them in my car the leds where yellow, but the box that those came in It said they where white 😮
Hey there! Sorry to hear about that! Feel free to give us a call at 314-205-3033, Monday-Friday 10 a.m.- 5 p.m. CST, or shoot us an email at contact@diodedynamics.com, and our in-house US service team would be happy to swap those over to white for you!
You're welcome to test ours out! We offer a 30-day return policy should you be unhappy with your purchase for any reason. No restocking fees, no administrative fees, no return shipping fee for US customers, and no hassle! www.diodedynamics.com/returns-and-exchanges
Awesome. Loved my SL1's in my 16' Charger & 19' F-150! Will the H11 SL2's work in the E70 LCI BMW X5 (2013 MY)? It has that weird turn the steering wheel left or right and the fog light on that side illuminates...
Please go ahead and give us a call at 314-205-3033, Monday-Friday 10 a.m.- 5 p.m. CST, or shoot us an email at contact@diodedynamics.com, and our in-house US service team would be happy to help you with that. Hours: Monday-Friday 10 a.m. - 5 p.m. CDT Email: contact@diodedynamics.com Phone: 314-205-3033
These are not. We decided as a performance LED manufacturer, we would delegate certain smaller projects to suppliers overseas, to give us more availability to focus on much bigger projects that are currently in the pipeline for our production team in Missouri! Be sure and stay tuned for those releases in the coming months!
The SL2 Pro offers 2400 lumens, while the SL1 offers 1400 lumens. This is the perfect upgrade for any offroad setup while maintaining the same output pattern of halogen lamps!
@@diodedynamics so basically it's a lot more light. Would be good for a fog light? I have sl1 as a fog light (with a normal style put the bulb through the back housing) 2013 accord V6 sedan
@@ganzonomy Sure thing! As long as you have a halogen factory fog light, you can upgrade to the SL2 Pro. We offer them in H8 bulbs as well! You can check them out here: www.diodedynamics.com/h8-sl2-pro-led-bulbs-pair.html
@DiodeDynamics Now my question is, why did u guys go from Diode Dynamics - SL1 with an external driver. To Diode Dynamics- SL2 PRO with internal driver? I love both version of them. But I’m curious of why go that route?
@@contagiousingenuityagency5273 eliminating the external driver allows for expanded fitment across all vehicles. Many vehicles couldn't use SL1 bulbs as the back of the bulb was larger with dust caps or external driver wouldn't fit inside the headlight housing if sealed.
A side by side comparison with the SL2 and SL2 Pro versions would be great. I’d like to see the difference before I decide which version to get.
Send us a DM on Facebook or Instagram and we can send it over to you!
@diodedynamics Hi. I have been waiting for a review and comparison of the SL2 H1 bulb as this one is by far the most controversial one. Most manufacturers like honda required some sort of adapter with the H1 bulb. That's why yours are the only reputable brand H1 in compact form on the market. My 06 CR-V uses two pairs of H1 for high and low beams. I would appreciate it if you guys made a video about the H1 SL2 comparing it to the halogen. I already have them in the shopping cart. Thanks
Nice, I wish y'all would release some warmer color temps though. 4000k-4500k would be much better.
Though we don't have any plans for it at this time, I'll be sure to suggest it to our team!
Now even if it’s not DOT approved, even if u say not good to put led bulbs in a low beam headlights to use in an area of no lights or city lights.
We still would rather upgrade led bulbs on either projector or reflector. No matter what.
It’s a huge safety benefits to see better and be seeing better.
In our states, we have no issues at all putting led bulbs in projector or reflector headlights.
It's stated for legal reasons. I've personally never heard of anyone getting pulled over or ticketed for having led bulbs.
@@Mr_Ruhl people complain about any led bulbs that’s 3000 lumens u come across or over 3000 lumens per bulb is illegal. That’s why.
But I agree with u as well.
No cop will ever pull u over for that, as long as u aim correctly and fix the orientation correctly. It’s a no problem:
just wanted to say thank you ,i just received my sl2 pro .
as always great customer service and warranty
You're welcome!
We appreciate your support and positive feedback regarding our products.
Was not expecting this, I’m ordering a pair now!
We love to hear it and look forward to hearing back! 🤘
Are you guys releasing the full specs of the bulbs? I’m curious to see how these compare to the morimotos in terms of the emission surface.
More information to come! Stay tuned!
What exactly is a "limited lifetime warranty?"
You can learn more here:
www.diodedynamics.com/warranty
Basically they stand behind their product, which means they know this will truly last for a very very long time. And if anything goes wrong, they will be able to replace it. At anytime
So, a friend of mine (we're engineers) asked me around 2015 about the feasibiilty of an LED replacement bulb for headlights. I told him don't do it, the technology isn't there.
It still really isn't - but it's close-ish.
What you don't want is a diode hanging way out there on the filament location. Instead, you want a fiber coupled blue laser, with the PHOSPHOR conversion out where the filament is (talk to a company called Intematix, who make inorganic phosphors for light conversion. This means you can get the heat down to the base, where there is more area you can use for dissipation without obstructing the light distribution field (you can still reject all the heat into the housing). Imagine having a fiber that is the shape of a filament, covered with the phosphor in about the original dimensions of the filament, and the heat all at the base where it can be rejected into the housing.
Similar to the signal bulbs - "there was an attempt"... the Xenon Depot 7443 XTREME VF bulbs (no affiliation, I bought some, wasn't happy), try to use a light pipe to move the LED parts down out of the way, but IMHO they didn't "go big" enough. Back in 2020 I recommended to them making the light pipe longer so they could replace the bulb base and put both the driver and heatsink in it, nothing ever came of that from them.
Diode Dynamics is one of a the few LED bulb manufactuers I've seen using an integration sphere to measure light output - I can pretty much gaurentee that none of the Chinese bulbs do that. But I'm still unhappy with amber bulb intensity in daylight. Best LED replacement I've used has ben a Whelen "factory option" from Ford in my 2015 Police Interceptor - they have somethign they called the "LED Front Lighting Solution" which included LED hide-away strobes, but the amber turn signals had to be integrated into the front firing white strobes in the turn signal location. not only did Whelen nail the bright/dim ratio so that YOU CAN ACTUALLY TELL THE DIFFERENCE, they got the bright output correct.
Looks promising. A few questions...
What's the CRI?
The rated luminous flux of 2400 lumens-is that RAW lumens, or EFFECTIVE lumens?
Do you have any plans for warmer color temperatures like 4000K?
Thank you
CRI is the color rendering index. Scored from 0 to 100. At 0 all colors look the same, at 100 actual true color of the object is revealed. Like daytime on a sunny day. You get the true color of grass, trees, rocks, animals, ect. The closer the score to 100, the better. Eg. At night, you will pick up a deer in dew covered grass in a ditch way better, with a cri that is 100 than say an light that has 50 or 60 CRI.
@@PondstompingAdventures I understand that, I'm wondering what the CRI rating for the SL2 is.
@sherlock_homeslice sorry, misread your comment. As for sl2 CRI rating, I am not sure. That would be interesting to find out. I personally have only seen some really high quality leds in the past have a maximum of 70 CRI, but that was a couple years ago. I would hope that Diode Dynamics would have at least that at minimum. Hopefully they will get back to these comments and answer them.
Hey there! At Diode Dynamics, we prioritize the performance characteristics most critical to automotive safety and effectiveness in our lighting products. CRI is less relevant in automotive lighting, where the focus is on visibility, beam pattern, and luminous intensity to ensure safety under various driving conditions. Automotive standards emphasize these aspects rather than color accuracy, as nighttime visibility relies more on light intensity and distribution than on color rendition. Thus, we do not publish CRI values because they do not provide meaningful information in the context of automotive lighting applications.
Regarding the output - the 2400 lumens is a measured/effective lumen measurement per bulb. Though we don't have any plans for other color temperatures at this time, we will suggest it to our team for you!
Hope this answers your questions!
And yes I’m a huge fan of any type of high quality reputable brand led bulbs way more than HID.
So I already subscribe to u guys.
I’m seeing better potential than ever before now.
❤️🔥❤️🔥❤️🔥
We appreciate all your support!
@@diodedynamics I always do 🙏🏼🙏🏼🙏🏼
I love all the videos you guys put out. Not just because I’m affiliated with you guys, but the transparency you give as to specs and the design/dimensions is unmatched.
We truly appreciate your support and happy to have you apart of our ambassador team!
The SL 1 fans interfere with the radio I have in my 2019 WRX. Would these new pro bulbs do the same?
We have not had any reports of radio interference on our SL2/SL2 Pro LED replacement bulbs on a 2019 WRX.
Diode Dynamics offers a 30-day return policy that includes a free return label and no restocking fee if you want to give these a try!
@@diodedynamics Thank you for your reply. I will definitely look to update!!!
Still no dual beam applications? No 9007, H13, or H4?
We currently do not offer a dual filament option at this time. Sorry about that!
@@diodedynamicswill these still give the bulb out warning on finicky bcm model vehicles like fords and Chryslers. I bout a pair of the sl1 and every time I turned them on I would get bulb out warnings every 5 seconds so I pulled them years ago and put them in a box.
So awesome 🔥
Thank you! 🤘
Offroad use 😉
Are these too bright to be used as a DRL?
Correct, these only operate at full brightness for offroad use only.
What is the MBTF of that tiny cooling fan that you have inside the SL2PRO product? Will the fan go before the LED or vice versa?
Certainly! While we don't have confirmed data on the MTBF (Mean Time Between Failures) of the top-sided cooling fan in the SL2 Pro, we stand behind our commitment to quality with a lifetime warranty on these bulbs. This ensures that regardless of which component might require replacement first, you'll have peace of mind knowing that we'll support you for the long haul.
Question! Are you working on a dual fan model? Putting the fan above the LED is genius and I wonder just how much brigher and efficient a model with a traditional fan 'base' + this new fan would be !
That's an excellent idea! We'll be sure to pass that idea on to our engineering team for future consideration!
Any beam pattern views with the sl2 pro on 4th gen ram with the quad headlight. Also does the high beam led fit in the factory housing with the dustcap. I personally have a lot of your products. Fantastic.
We don't have any output shots on that headlight setup specifically, but you're welcome to try them out! We offer free returns with any order of $50 or more, within 30 days from the date of delivery. No restocking fees, no administrative fees, no return shipping fee for US customers, and no hassle!
www.diodedynamics.com/returns-and-exchanges
How's the focus on these? Better than the sl1? Any gonio tests? Any beam pattern charts like you had with the sl1 in the f150?
The focus of the light is generally much better, however this all depends on the housing they are installed in.
We'll work on getting better comparison images in several housings in the near future! Stay tuned.
Can I use the 2015-2017 for my 2018? Would they still work??
If you have have halogen factory headlights, the low beam will be H11 and the high beam is 9005. We offer both on our website!
www.diodedynamics.com/products/led-bulbs/foglight-drl.html
I order the slf fog lights in cool white but When I got them they said I got an upgrade the sl2 instead but when I install them in my car the leds where yellow, but the box that those came in It said they where white 😮
Hey there! Sorry to hear about that!
Feel free to give us a call at 314-205-3033, Monday-Friday 10 a.m.- 5 p.m. CST, or shoot us an email at contact@diodedynamics.com, and our in-house US service team would be happy to swap those over to white for you!
Fine, I'll buy them.
Man- bought my SL1s less than a year ago, now there is an improved SL2 pro😮?
Sorry about that! It's never too late to upgrade! 🙌
Still thinking about these diode dynamics and vleds. Not sure....
You're welcome to test ours out! We offer a 30-day return policy should you be unhappy with your purchase for any reason. No restocking fees, no administrative fees, no return shipping fee for US customers, and no hassle!
www.diodedynamics.com/returns-and-exchanges
It would be great to see a yellow SL2 Pro in H11 and H09 be available.
No plans for a yellow SL2 Pro model at this time, just in our SL2 model. Sorry about that!
Awesome. Loved my SL1's in my 16' Charger & 19' F-150! Will the H11 SL2's work in the E70 LCI BMW X5 (2013 MY)? It has that weird turn the steering wheel left or right and the fog light on that side illuminates...
Please go ahead and give us a call at 314-205-3033, Monday-Friday 10 a.m.- 5 p.m. CST, or shoot us an email at contact@diodedynamics.com, and our in-house US service team would be happy to help you with that.
Hours: Monday-Friday 10 a.m. - 5 p.m. CDT
Email: contact@diodedynamics.com
Phone: 314-205-3033
Do you have the H3 in SL2 Pro? I only see H3 in SL2.
Not at this time, however, the SL2 will be a massive improvement over your current options!
www.diodedynamics.com/h3-sl2-led-bulbs-pair.html
Are you planning to have a H4 bulb replacement?
We currently do not offer a dual filament option at this time. Hopefully, it's an option available in the future!
Do you have 9008/H13 in these?
Not at this present time. We hope to offer more options in the future!
Man you guys need a switchback led fog light bulb like your competitor. I have the DD in my headlights and they are awesome
Neat idea, we'll suggest it to our team!
@@diodedynamics make switchback versions for all of them and your other pod lights
Are these made in USA like the SL1?
These are not. We decided as a performance LED manufacturer, we would delegate certain smaller projects to suppliers overseas, to give us more availability to focus on much bigger projects that are currently in the pipeline for our production team in Missouri! Be sure and stay tuned for those releases in the coming months!
@@diodedynamics Thank you for your informative response. I will wait to see what USA made products you offer in the future, then.
How does the sl2 pro compare to the sl1
The SL2 Pro offers 2400 lumens, while the SL1 offers 1400 lumens. This is the perfect upgrade for any offroad setup while maintaining the same output pattern of halogen lamps!
@@diodedynamics so basically it's a lot more light. Would be good for a fog light? I have sl1 as a fog light (with a normal style put the bulb through the back housing)
2013 accord V6 sedan
@@ganzonomy Sure thing! As long as you have a halogen factory fog light, you can upgrade to the SL2 Pro. We offer them in H8 bulbs as well! You can check them out here:
www.diodedynamics.com/h8-sl2-pro-led-bulbs-pair.html
@DiodeDynamics
Now my question is, why did u guys go from Diode Dynamics - SL1 with an external driver.
To Diode Dynamics- SL2 PRO with internal driver?
I love both version of them. But I’m curious of why go that route?
Probably to keep it lower profile... 🤷
@@contagiousingenuityagency5273 eliminating the external driver allows for expanded fitment across all vehicles. Many vehicles couldn't use SL1 bulbs as the back of the bulb was larger with dust caps or external driver wouldn't fit inside the headlight housing if sealed.