So I tried my H1 HID in the projectors last night out of curiosity and they will not work. Light output was horrible. I moved the bulb around inside, turned it etc and found they just won't work. So now its a new D3S hid kit. Probably in 4300k or 5000k range. I am going for the most output so I know that's what I will do. I've had 6000k before and liked the look, but I like the light from 4300-5000k's. I personally would never go over 6000k, I'm not a fan of the blue output but to each his own I guess. I have 35w 3000k HID in the fogs and love the look and output.