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AI still has a ways to go, for sure. I've played with several of the products, and once in a while they're able to totally nail my queries ... but just as often, the results are laughable.

From the standpoint of this forum, it's appreciated if any posts generated by AI are labeled as such. AI content is also used by spammers a lot, and if a post from a new user sounds like AI, I always scrutinize it more closely.
 
AI still has a ways to go, for sure. I've played with several of the products, and once in a while they're able to totally nail my queries ... but just as often, the results are laughable.

From the standpoint of this forum, it's appreciated if any posts generated by AI are labeled as such. AI content is also used by spammers a lot, and if a post from a new user sounds like AI, I always scrutinize it more closely.
Yep. I a computer scientist myself. Started coding in the 70's. What a long strange trip it's been. I redid my query and got the same response without AI.
 
Discussion starter · #23 ·
6000lm is crazy bright! Stock backup lights are around 250lm. The brightest Diode Dynamics ones are 700lm.
The numbers are exaggerated likely. I don't think they're 3000lm each. Few brands are honest about this unfortunately. You seen those ridiculous 16000lm and such?
 
Oddly (or not), the "old standard" brands seem to be less forthcoming with any claim about lumen ratings or similar.

For example, the Sylvania LED 912 bulbs, which would fit the reverse light sockets but don't have the brightness / output rating anywhere I could find on a quick search.
 
We get annual emissions and safety checks. Front suspension and steering, wipers, lamps and headlights aim. I doubt rear bulb brightness would cause an issue.
I saw what they do here in MA. They check all bulbs to make sure they work. And they check headlight aim.
 
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I personally have tried only a few aftermarket LED bulbs for various vehicles in the last two years or so. LED technology since covid has advanced ALOT IMO!!
While pricing may be a factor for some, I have noticed that quality in some of the more pricier LEDs IS worth the expense as they tend to last much longer. I have yet to try Diode Dynamics newer LEDs, but I can attest to their quality amongst their other fog/spot/driving/ditch lights (y) (y) It is worth the extra coin to cry once ;) I do not doubt their other LEDs would be any different.

Today's LED designs are very close in dimensions to regular filament bulbs or halogens. Gone are the days of only a couple years ago with extended housings with cooling fans, extra diodes, etc.

But...brighter does not necessarily mean better? As with anything, there is a balance between brightness and longevity IMO. Sure you may have a nice bright set of LEDs in the CT, but if you need to change them out too often, is it worth it? Again, just my two cents.
 
I have tested a LOT of LED back-up bulbs on my car including Diode Dynamics, LASFIT, SuperBrightLEDs, Alla, etc... and these are simply the BEST ones ever made.

7440 for Pre 2024

921 for 2024+

These are so far above any other bulb I tested. No other design of 7440 bulb came close. It's like having a set of headlights on the back of your car for backing up - and since I often park in dimly light areas, this is absolutely awesome and gives me confidence when backing up, it also works fantastic for lighting things up on the reverse camera.

Reliability wise, I've had these for a year now and no issues. I waited to post this to ensure they wouldn't die.

They have the LEDs on a thin strip back-to-back chips positioned vertically like headlight replacements, matching filament location. You can see the chips in the reflector beads showing that. The rubber grommet is a little tricky to insert, and you have to make sure you rotate them so the chips are firing out at the 9 and 3 position.

One of the Alla bulbs was similar brightness, but had extremely poor build and design quality and I cannot recommend that bulb and would possibly classify it as dangerous, as many other cheap bulbs are.

No, this isn't a sponsored post. I bought these products with my own money.

View attachment 325486
I bought the 921's for my 24 limited and the bulb will fit the hole and will plug into the harness, but the bulb housing sticks out too far and the cover on the inside of the hatch will not fit over it.
 
I have tested a LOT of LED back-up bulbs on my car including Diode Dynamics, LASFIT, SuperBrightLEDs, Alla, etc... and these are simply the BEST ones ever made.

7440 for Pre 2024

921 for 2024+

These are so far above any other bulb I tested. No other design of 7440 bulb came close. It's like having a set of headlights on the back of your car for backing up - and since I often park in dimly light areas, this is absolutely awesome and gives me confidence when backing up, it also works fantastic for lighting things up on the reverse camera.

Reliability wise, I've had these for a year now and no issues. I waited to post this to ensure they wouldn't die.

They have the LEDs on a thin strip back-to-back chips positioned vertically like headlight replacements, matching filament location. You can see the chips in the reflector beads showing that. The rubber grommet is a little tricky to insert, and you have to make sure you rotate them so the chips are firing out at the 9 and 3 position.

One of the Alla bulbs was similar brightness, but had extremely poor build and design quality and I cannot recommend that bulb and would possibly classify it as dangerous, as many other cheap bulbs are.

No, this isn't a sponsored post. I bought these products with my own money.

View attachment 325486
I've had mine now for about 4 years on my 2019 base Trek... OEM back up lights were miserable especially with light tint on the side windows. Old school I do use the camera but I also use the side mirrors since we have those obnoxious concrete strips for driveway.
 
I personally have tried only a few aftermarket LED bulbs for various vehicles in the last two years or so. LED technology since covid has advanced ALOT IMO!!
While pricing may be a factor for some, I have noticed that quality in some of the more pricier LEDs IS worth the expense as they tend to last much longer. I have yet to try Diode Dynamics newer LEDs, but I can attest to their quality amongst their other fog/spot/driving/ditch lights (y) (y) It is worth the extra coin to cry once ;) I do not doubt their other LEDs would be any different.

Today's LED designs are very close in dimensions to regular filament bulbs or halogens. Gone are the days of only a couple years ago with extended housings with cooling fans, extra diodes, etc.

But...brighter does not necessarily mean better? As with anything, there is a balance between brightness and longevity IMO. Sure you may have a nice bright set of LEDs in the CT, but if you need to change them out too often, is it worth it? Again, just my two cents.
Hell, I bought a pair of cheap Sylvania 912 LEDs from an auto parts store, and those were an upgrade over the incandescents... and will probably outlive some countries.
 
The auxbeam lights can be extremely bright. Bought a pair for the fog lights on my '23 (yellow). Lit up the road like high beams. Got flashed during the day. These were like the 6x brighter. I bought the same thing only different that were like 3X brighter. More within the range of normal.
 
I saw that Auxbeam has two different backup LED options. The lower end ones looks similar to the ones I got from Diode Dynamics. The higher end one is huge and I have to wonder if it will burn a hole in the reflector or not even fit.
 
I do think that lights on a car can be too bright... impairing the vision of oncoming drivers and not giving the driver of the car they're on any ability to adjust to night vision.
On the subject of reverse LED's, how will they impact oncoming drivers or inhibit the driver's ability to adjust to night vision in the car they are on?
 
On the subject of reverse LED's, how will they impact oncoming drivers or inhibit the driver's ability to adjust to night vision in the car they are on?
The conversation has spread to more than just reverse lights.

And even there... I don't imagine getting blasted in the face by someone who has mounted a pair of Klieg lights to their back hatch is going to make for a pleasant parking lot experience.
 
The conversation has spread to more than just reverse lights.

And even there... I don't imagine getting blasted in the face by someone who has mounted a pair of Klieg lights to their back hatch is going to make for a pleasant parking lot experience.
Parking lots aren't pleasant. And pleasant doesn't save lives. Seeing someone behind me because of better illumination might save someone's life. That's the only reason I want brighter backup lights.

If the topic is about headlights, then yes, I agree with you about being careful not to blind people.
 
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Parking lots aren't pleasant. And pleasant doesn't save lives. Seeing someone behind me because of better illumination might save someone's life. That's the only reason I want brighter backup lights.

If the topic is about headlights, then yes, I agree with you about being careful not to blind people.
yep. If I am on the receiving end I would prefer to be temporarily inconvenienced by the light for a few seconds rather than being backed into.
 
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