i just got a kit off a 2k2 TLS 4300K brand new bulbs, ballasts, ignitors. You have to take the H4 ring off a stock bulb or any other H4 bulb and fix the HID bulb into the ring and then it just pops in normally. I'd say it's freaking bright, the beam pattern is decent considering the kit isn't designed for our housings and i got a hella good deal.