, , , , , , This is a replcement 12v 35w Slim Digital ballast for aftermarket Xenon , HID conversion kits. Compatible with almost all aftermarket kits no , matter where you bought it., , , Will not work on cars with the can-bus wiring system. Please check our , shop for those., , , If you have one thats gone faulty then this is what you need. The , ballast does not effect the colour temperature. Just make sure your , bulbs are 35w and not 50/55w, , ,