... :2xbulbs 3.HID lifespan: >3500 hours,Failure rate<0.5% xenon headlights kit 1.HID Package detail2. Color temperature: 3000k~12000k3 ... . Model Bulbs: Single: H1,H3,H4,H7,H8,H9,H10,H11,H13,9004,9005,9006,9007,5202 ... makePacking box: Colorful2pc ballast2pc bulbdifference between install HID and normal bulb ballast only 1.4cm thickness 12v 35w 6000k h7 xenon headlights kit