Review on 🚘 Enhanced BMW Xenon White LED Angel Eye Halo Ring Marker Light Bulb: High Power 6000K, 20W/40W, CREE Technology - Fits E39, E53, E60, E61, E63, E65, E66, E83, E87, X5 (2x) by Brian Samuel

Came without instructions but will be very useful to me. Removed the e66 bumper, removed the headlights, disconnected the old A/E bulb and replaced it with a new A/E bulb. You must attach the wire harness to the end of the OE wire harness as it is not a permanent connection. Then you need to insert the A/E ballasts into the small hole of the A/E lamp mounting hole. All this! it's fairly tight, then put in the new A/E bulb. Use long pliers to screw in the new bulb. Be sure to test the unit with the headlight on the outside of the 1st before reinstalling it into the headlight bracket. Repeat on the other side. Not 6k as advertised. More like 3k. Flashing lights and a warning that the lights are out