... ,8000K,10000K,12000K lifetime 3000h HID bulb Models: HID bulb Single Beam : H1, H3, H4-1, H7, 9004-1, ... 2 ballasts and installationclamps.HID bulb Hi-lo Beam : H4-2, 9004-2. 9007-2 hid ... high beam, with 2ballasts and installation clamps.HID bulb Telescope : H4-3, 9004-3, 9007-3, single HID ... can switch between high beam and low beam,with 2 ballasts and installation clamps ...