VIVOSUN 98% Ultrahigh Reflectivity 3-Mode-Adjust 1000W Double Ended Reflector Fixture w/ 1000w DE HPS Lamp, 1 Pair Rope Hanger & Digital Timer [Premium VEGA Aluminum] 3-Mode 1000w DE system w/ PREMIUM VEGA aluminum (99.9% Pure) - 98% ultrahigh lighting reflectivity Ballast 600/750/1000/1150w optional; Excellent lighting performance & premium VS lamp holder Microprocessor controlled with electronic safety circuit provides overheating and short-circuit protection Operates on 120/240-Volt, comes with 120V power cord, 120V/240V adapter, 1000w DE HPS lamp, rope hanger and digital timer This DE lighting system will generate much heat, we strongely suggest you to use this system in the condition with adequete ventiliation