I bought these for my Mercedes ML Class fog lights, to replace LED bulbs which never worked properly. They used to flicker or never lit up and wasted time with checking for loose connections, etc. Bottom line, I needed new bulbs. These are perfect for the small area that is in the bumper. I’ve tried LEDs with fans and LEDs with pigtails and they did not fit. Also, others did not lock in place so that the LEDs point to the sides. These do. Also, they are extremely bright. Unfortunately with the older ML Class, you have to turn on the headlights to turn on the foglights unless you leave it in AUTO mode which did not occur to me at the time. But they are bright and they light up the sides of the road and the lower part of the road so you can see potholes.Please see my video on how to install this in a Mercedes Benz ML Class from 2002-2005.