... , low-temperature high-automatic protection functionBulb sizes available: Single beam Bulb: H1, H3, H4-1, H7, H8, H9, H10, ... , 9005, 9006, 9007-1, D2C(D2S/D2R), H3C, 880/881H/L Bulb (Xenon L+Halogen H): H4-2, H13-2, 9004 ... -2, 9007-2H/L Telescopic Bulb: H4-3, H13 ... -3H/L Bi-xenon Dual Bulb: H4-4, H13-4, 9004-4, 9007-4\ KY H4 High and Low HID Xenon Bulb