HID Ballast 1.Defective rate<1% 2. Different bulbs type compatible 3. ... 4.CE /FCC /ISO9001 approved Hella Type AC Digital HID Ballast for Auto Xenon Lighting Technical parameter:Working Voltage: 9-16VOutput power ... ,D2S,D2C,D2RMoving Series:H4-3,H13-3,9004-3Double Lamp Series:H4-4 9004, 9007-4, H13-4 Your benefit ... -date from time to time Hella Type AC Digital HID Ballast for Auto Xenon Lighting