4300k & 4500k are your pure white range, I'd recommend those. I have the Apexcone 55w Raptor V2s from http://www.ddmtuning.com/Products/Ap...Raptor-HID-Kit
. They have life time warranty on both bulbs and ballasts and the 55w kit is $44. So usually I just buy 2 sets and if there's ever any problems, I can switch out and send the other one back for a free replacement. I've been on my first set for over 2 years without a glitch. I don't use the harness either. Their 4500k is more of a pure white because its a 55w and its very bright.