Features: High Intensity Discharge HID conversion digital ballast are a simple, affordable way to replacement your defective ballast from standard halogens to cutting-edge xenon technology. This ballast is universal fit for all aftermarket HID light bulbs as below. H1, H3, H4, H7, H8, H9, H10, H11, H13 HB1, HB2, HB3, HB4, HB5 9003, 9004, 9005, 9006, 9007, 9008, 9140, 9145, 880, 881 all 800 series available For OEM D1S, D1R, D2S, DS4, D4S, D4R, buyer MUST need to get a AMP connectors to fit. Specification: Wattage:35/55W.As It is theoretically Max. rated power. Generally, the working wattage is less than 35/55W. Other seller store's 35/55W ballast like this. Start voltage: 23KV Output voltage: DC 12V Working Temperature: -40°C-105°C Life Time: 2000 hrs; Protection Function: Short/out put protection in 1.5 sec by shutdown; Waterproof, Heatproof, Shockproof, Anti-Electronic Interference and Constant Power Output Use for: 12V truck, 12V bus,12V offroad, 12V tractor, all with 12V big vehicle. Not suitable for 24V car/auto/motorcycle. Note: As it is just normal hid ballast, without can-bus function, can not cancel error. If your car is high-end luxury and european models with computer, and find it cause error or warning erro after install ballast, please go to our store to buy canbus hid ballast. Package List: 1 x HID Ballast