•Input Voltage Range: 8.5V-18V •Start Votage Range: 9V-17V. •Max. Start Voltage: 23kV •Input Current: 3.2A±0.1A •Output Power: 35W±1W •HID Efficiency:98.68%, 3,500 LM •Working Temperature: -40 ~ +105°C •Life-Span: 3,000 hours •Startup Time: can reach 20% of the standard brightness within 1 second; can reach 90% of the standard brightness within 4 seconds ; • Auto Cut-off: once there is a short circuit or open circuit, the ballast will stop working automatically ; •Protection Voltage: when the voltage exceed 18V, the ballast will stop working automatically, and make the output power below 45W to protect the ballast and bulb from damage. When the voltage is 8V, the ballast still can work normally. But when the voltage is below 8V, the ballast will stop to protect the ballast from damage •Reverse Polarity Protection: the ballast will stop working automatically when a reverse polarity happens ; 2. Specifications: •Available Voltage and Wattage: 12V 35W, 12V 40W, 12V 45W, 12V 50W, 12V 55W 24V 35W, 24V 40W, 24V 45W, 24V 50W, 24V 55W