DE3175/31MM LED Bulbs

I purchased the AUXLIGHT DE3175 DE3021 DE3022 3175 31MM bulbs in 2025, and I have to give them 5 stars! These lights are incredibly bright with a vivid red color that really stands out. They were easy to install and made an immediate difference in visibility and style. If you’re looking for super bright red lights, these are definitely the way to go.

Product is great. They are perfect brightness and make zero noise. It came with 6 bulbs as listed and priced very well. I own a 2002 Mazda Protege5 and even though the sizes were off by a couple of millimeters compared to the old bulb, it still fit like a charm. I also installed the bulbs in my friend’s 90s GMC Sierra and they fit pretty well. Highly recommend for people looking for “Festoon” type bulbs.

Purchased and installed in my 2008 Honda Fit ceiling light housing. The OEM bulb is anemic, very anemic. I purchased another set that contained a 31mm festoon led bulb but it only doubled the light output of the original. Better but not good enough. I narrowed the choices to this set of 6 and another set that was rated at 400LM. However, it had 6500K light source -- a bit whiter than this one and it used a tad more power (2W rating). While I would have preferred to have the 400LM output, the LED's color is coolor and for me, 6000K is better than 6500K. After installing the 6000K LED lamp, the cabin lighting was much, much brighter. I am very glad I decided on going with these LEDs. Every Honda Fit owner who feels they need for more cabin lighting should consider buying this product.

If for some reason you want your interior lighting on your car or truck to be bright white LEDs, these work fine. No flickering and easy to install or replace. I decided they were a bit much for me to use in anything older than 2010.

As advertised, good quality and good price

Replaced the interior light in my Toyota Solara with the Auxlight led. Bulb went in easily and had no clearance issues. The white led light looks much nicer than the yellow from the stock bulb. It is also a little brighter. My other car has the same size bulb (stock), but I replaced it with a panel that has 20 led. The 20 led is much brighter, but when I leave it on for a while, it gets so hot that I worry about my dome light cover melting or burning. This one is a lot cooler but not very bright. It’s bright enough to see (at night), but not bright enough to read. My 20 led panel is bright enough to read (and it will also fit in my Solara). So, I guess it depends on what the goal is.

Swapped old yellow bulbs with these. Nice and bright. Works on 2015 Kia Soul, 1997 Miata, 2012 Lexus ES350.

Overall it is decent. Pros: Brighton, good price. Cons: My main issue is build quality. The cone shaped end pieces only connect to the circuit board. I outlined how narrow it is in my attached pic. So when I installed it (in my 2003 Tundra) it bent really easily. I didn't break it and it still works but I don't know if driving will cause it to snap. The cost being so cheap offsets this issue somewhat as long as it lasts a while before it breaks.

Extremely bright lights . Very nice colour and great improvement from the yellow halogen bulbs that come stock. I do feel it's almost a bit to bright to be honest but that's my fault not understanding how LED brightness exactly work . I probably could have got less lumes or less amps. Either way really nice good lights forsure and they fit perfectly in place in my 2010 honda crv

Work well.... Very Bright

The led bulb is bright and provides the cool white that I was looking for. The vehicle matcher had it confirmed for different points in our 2012 Ford Escape. It only works in the center dome light.

The ad said it fit in a 2010 honda civic. They did fit my civic just perfect and they work phenomenal. The ad also said they'd fit a 2014 hyundai accent. Put them in and blew the fuse. So make sure they are the proper fit!!

I installed these LED's in my car interior dome lights . Nice and bright .