... decline, anti-interference, high-low-voltage, short circuit, low-temperature high-automatic protection functionBulb sizes available: Single beam Bulb: H1, H3, H4- ... , 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, H13-3, 9004-3, 9007-3H/L ... Bi-xenon Dual Bulb: H4-4, H13-4, 9004-4, 9007-4\ KY ...