BallastChina 55W 12V Xenon HID H4 Bulb Kit H4 Xenon Headlight Bulb HID Conversion Kits Slim Ballast +Xenons Light, Find details about China HID Xenon, Auto Lamp from 55W 12V Xenon HID H4 Bulb Kit H4 Xenon Headlight Bulb HID Conversion Kits Slim Ballast +Xenons Light