Specifications: Fanle LED Lamps Pacakge: One Pair Voltage: DC 12V Color Temperature: 6500K (White) Lumen : 16000LM Light Power: 50W IP Rate: IP 67 Waterproof, Dustproof. Operating Life: >30000hrs Operating Temperature: -40 - +80 Centigrade Application: Headlamp Lamp High or Low Beam, Fog Lights, Motorcycle Headlight. Plug Type: Hi-Lo Beam: H4 Single Beam: H1, H3, H7, H11(H8 H9), 9005(HB3), 9006(HB4). Please try to adjust the bulbs to get a better light pattern when installing. Adapter: Our bulbs are stardand connectors, please buy the adapters in our store if your car need adapters. Some cars using H7 may need adapter Canbus: Error Free for 95% Cars. ((Not fit to special cars, for example: not for all the Germany cars, and not for Seat, not for Volvo, not for Scania and so on...) ) So for most of the cars, don't need to buy external canbus.