Canbus: Error Free for 95% Cars. (Not fit to special cars, for example: not for B-M-W, not for AUDI, not for MERCEDES, not for VW...) So for most of the cars, don't need to buy external canbus. Voltage: DC 12-24V Color Temperature: 6500K Lumen : 8000LM/Per Pair Light Power: 72W/Per Pair IP Rate: IP 67 Operating Life: >30000hrs Operating Temperature: -40 - +80 Centigrade Application: Headlight (High Beam or Low Beam, Fog Lamps. Plug Type: Single Beam: H1, H3, H7, H11, HB3(9005), HB4(9006). Hi-Lo Beam: H4(9003)(HB2). Adapter: Our bulbs are stardand connectors, don't need adapters if you are using halogen bulbs without adpaters; need adapters if you need adapters when using halogen bulbs.