Professional 1000 watt high frequency electronic ballast. Including high efficiency Miro aluminum horticultural HortiStar HR96 reflector (95% efficiency). Includes 1000 watt double-ended EL lamp. Microprocessor controlled with electronic safety circuit. Very low heat dissipation and very low weight. Only suitable for use with 1000 watt double-ended EL lamps. No acoustic resonance, more than 10% grow light compared to traditional lamps and light maintenance after 5000 hrs >95%. Electronics by Gavita. Driver efficiency >95%. Sealed housing with Gore-Tex ventilation plug. Reflector is easily replaceable. Comes with 3 ft 3 in power cord (6 and 10 ft power cord available) that is not attached and has an open wire end. Eye bolts and nuts included for hanging. #906089 operates at 277 V. 1 year warranty on the lamp.