HELLA 921LED 5K LED Performance Bulbs, 12V, 1W 2 Pack

These LEDs are amazing! They make the interior of my Mercedes SUV look very classy compared to the OEM incandescent bulbs, especially with these being a nice 5000K Natural White VS the typical “harsh” 6000K cool white replacements.Yes, they aren’t as bright as other LED bulbs out there, but they are plenty bright for use as interior lighting. I previously had some really good 6000K bulbs in my interior, but nowadays I can’t seem to stand the cooler color temperature especially in the cabin of the vehicle - makes it feel like you’re sitting in a laboratory of some sorts. While the 6000K I previously had installed were much brighter (TOO bright to the point where you’d get blinded/headaches at night when you’d shut the vehicle off or open the doors), these new Hella 5K LEDs are what I’d consider to be an appropriate level of brightness/warmth for interior lighting, I’d say they’re a step up in brightness from the OEM 6 watt incandescent bulbs that were originally installed in here.Overall, I’d highly recommend these bulbs if you’re after a nice natural white 5000K appearance vs the super common cool white of the 6000K. I’ll update this review as time goes on regarding the bulbs durability and lifespan.

Easy to install and fit perfectly. No issues at all. Not as bright as other LED light but brighter than incandescent bulbs

If you have problems where you want to change your lights for LED lights, but when installing the new ones the light stay dim and won't turn off, look no further, these are the ones you are looking for! I tried, Sylvania and Philips, both would stay dimm and won't turn off.

Not nearly bright enough.

I bought these as my car says it takes a 921 for the reverse lights. However, the reverse light is about double the size. I installed them in my interior hatch instead. they are brighter than the stock lighting. But they aren't bright enough to fit my 2013 Acura MDX as backup lights. Need to go pester Autozone to see if I can find the right size bulb for the backup lights.

If you buy cheaper leds they will burn out. These will last alot longer. And worth the extra money.

Replaced the old lamps in my exterior dome light and break light on back of cab with these. They fit perfectly and work fine but I don't think they are quiet as bright as the original lamps. That said, I'd buy these again if I had to replace them again but hopefully they'll outlast the truck.

Wanted to test these out before replacing the dome lights to make sure it wasn't too much, so I used these to replace the courtesy/step lights on a 2002 Highlander, they were all very dim. Quick and easy fit, no flickering and way, way brighter. Picture shows the tone of the interior lights vs the new LED in the doors. Will definitely be upgrading the dome and map lights now!