HID Xenon 12V 35W Slim AC Digital Ballasts (Pack of 2) Ballast with High 155 Watt Output for Wide Distribution of Light Digital AC Ballast With 9V - 16V Power Input Voltage (Vehicle Standard) 35% Less Power Consumption: thus Generating Much Less Heat during Operation For 35W (+/- 1W) Bulb Output in General Waterproof / Weatherproof AMP Connectors. Heavy Duty Working Temperature: -40 F - 221 F (-40 C to 105 C )