35W 9004 hid ballast 1, stable performance 2, high brightness 3, easy to instal Specifications: Input voltage: 9-16VPower: 35WStart ... : 18 monthsRegular ballst(AC CPU digital ballast) Weight: 254gSize: 74.3*64.0*15.7mm No flickering (eyes protected) , no ... -low-voltage,short circuit,low-temperature,high-automatic protection function.3. Heat-resistant: high efficacy, low temperature rise, reliable ...