2 X 55W Universal Fit AC HID Slim Digital Ballast for H1 H3 H4 H7 H8 H9 H10 H11 H13 9004 9005 9006 9007 D2R D2S D2C NOT 55W, REFUND, DIDN'T WORK, REFUND, NO WANT,REFUNDCompatible With: H series: H1,H3, H3C,H4-1,H4-2,H7,H7C,H7R,H8,H9,H10,H11,H13,H13-2 -- 9 Series: 9004,9004-2,9005,9006,9007-2, 9007, 9007-3 -- D Series: D2S,D2C,D2R -- Moving Series:H4-3,H13-3,9004-3 -- Double Lamp Series:H4-4 9004, 9007-4, H13-4. Package includes: 2x XENON HID Ballast + Set of Mounting Accessories -- Operating Voltage: DC 9-16V. Output Wattage: 55W. Output Power: AC 70-140V. Luminous Flux: 3000  200 LM. Material: Aluminum Housing. Size: L x W x T: 3 15/32" (8.8cm) X 2 43/64" (6.8cm) X 45/64" (1.6cm) This HID Xenon Ballast can protect low/less or over voltage, anti-electromagnetism, connection circuit. Function for Reversed Input Protection, Thermal Protection. High luminous efficiency Flux: 3000  200 LM Unique aluminum heat sink housing design keep the ballast working under low temperature. HID produces supreme light output, Great visibility and Safety for driver. Promotes increased comfort and safer night time driving condition.. The bulbs will light up from 40% to 80% within 3 seconds and brighter than DC ballast. The AC ballast is 3 times more durable than DC output ballast. Waterproof, Heatproof, Shockproof, Anti-Electronic Interference and Constant Power Output