Specifications: Package: one pair. Lumen : 12000LM Light Power: 60W Voltage: DC 12-24V (12V, 24V) IP Rate: IP 68 Operating Life: >50000hours Operating Temperature: -40 - +80 Centigrade Application: Headlight: Foglamp, High Beam or Low Beam Plug Type: Single Beam: H1,H3, H7, H8=H9=H11, HB3(9005), HB4(9006). ------3000K+4300K+6000K Dual Beam: H4 ------ High Beam (6000K) + Low Beam (3000K+4300K+6000K) Adapter: Our bulbs are stardand connectors, please contact buy adapters in our store if you need adapters. (some cars using H7 may need adapters) 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.