... HID xenon adaptor, HID bulb Adpater, Xenon bulb base, HID Socket, HID Bulb Holder, HID Lamp ... HolderDetailed Product Description HID Base 1. Application: .Used on BMW, Benz and ... car, these cars have special lamp base that make normal mounting on bulbs difficult. So use this ... adaptor to help the bulb mounting on these special car types. . Transmit enough ...