... 4)slim HID ballast Hot Selling CD-HID-sl02,Single bulb series,slim ballast!Product Details:Age testing: HID ... dustproof test * Polarity protection test * EMC anti-jamming testHID BulbTypes:Single beam Bulb: H1, H3, H4-1, H7, H8, H9, ... -2, 9004-2, 9007-2 HID for low beam and Halogen bulb for high beamH/L Bi-xenon ... 9004-3, 9007-3 HID can switch between high beam and low beamWireless bulb: D2R/S/C, D4R/S ...