6000k is cool, its bright and white/blue at the begining but then it turns blue. I just didn't like it and 4300k suited me better. YOu can get hella deals on ebay now, i think my buddy bought a set for like 70 bucks? Quality is even better since hid kits came out like years ago, now they're good at cloning it so you don't have to worry about them burning out on you in a year or two.