Professional 600 watt top frequency electronic ballast. Including top efficiency Miro aluminum horticultural HortiStar HR96 reflector (95% efficiency). Best suitable to be used with 600 watt EL lamp (included): No acoustic resonance, as much as 8% more grow light and light-weight upkeep after 5000 hours >95%. Microprocessor controlled. Motive force efficiency >95%. Sealed housing with Gore-Tex ventilation plug. Reflector easily replaceable. Very low warmth dissipation and really low weight. LED status indicator. Operates at 240 Volts. Comes with 8 ft power cord. 1 year warranty at the lamp.