Review on AUXITO H4 9003 LED Light Bulbs - 80W 16,000LM Mini Sized 6500K Xenon White Lamp, CanBus Ready, Beam Adjustable - Plug and Play Conversion Kit, Pack of 2 by Michael Onwukaife

I bought 2 different sizes for 2 different cars and they work great. However, attempting to install them on a Scion xD that uses a headlight rubber bolt is impossible without cutting the trunk. Basically, the length between the key ring and the cooler part is too short. You will see that other brands are longer. Another special feature is the key ring, which simply snaps into place. It should be secure enough if the rubber o-ring holds. And that's why they give you a replacement, but the other brand uses notches on the key ring to secure it in place. This is useful to ensure the correct distance to the LED bulb in the headlight unit.