All in One Set: Upgraded for Car, Truck, SUV etc. for replacing halogen lamps, all in one style, no extra driver needed..
Light Source: HID Bi-Xenon HI/LOW Bulb, Crystal glass material, low beam & high beam is on one bulb and 4-5 times brighter than halogen..
Bulb Size: H4, Our bulb meets OEM size specifications to ensure a perfect fit, Plug & Play..
Color Temperature Available: 3000K/4300K/5000K/6000K/8000K/10000K/12000K (Optional), Corresponding color Golden yellow/Yellow white/Pure white/Deep white/Light blue/Crystal blue/Deep blue..