Specifications:1) Power: 35W2) Voltage: 12V or 24V3) Efficiency: 95%4) High illumination: 3,500LM5) Long life: 10 times longer than ordinary halogen lamps, about 3,000 - 5,000 hours6) Operating ambient temperature range: -20 - +85癈7) Low voltage protection: when voltage of the battery is less than 9V, ballast will stop working to avoid HID bulb exhausting electric energy8) Over-voltage protection: when voltage of the battery is more than 16V for trouble of power supply system and battery, ballast will stop working to prevent high voltage from burning bulb9) Waterproof: up to DIN400500 legal standards10) Anti-dust: up to SAE J575 legal standards11) Shockproof: up to DIN40056 legal standards producing area:China payment:T/T