Quality assurance: UL listed, 3-year warranty, professional after-sales service
Spec.: Runs on 120 - 240V, 50/60Hz, 8ft 120V power cord
Watt option: 250w / 400w / 600w / Super lumens (110%)
Protection system: Overheating protection, End-of-bulb-life protection, Short-circuit protection, Ignition-failure protection
Notice: Set ballast to the same watt option as the matched bulb before started