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: -40C-105C -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. Package included: 1xHID Ballast Dear buyers, we appreciate your business, if you are satisfied with our service, please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a ''PERFECT 5 STARS''. If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback. Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours. We understand your mood, and will provide you with the best solution for your problem, please give us the opportunity to solve the problem, For any case,please feel free to come to us,we are always here. look forward to and thank you for your trust. _x005F_x000D_