Digital Electronic Ballast 1000w HPS/MH Switchable
1000 Watt Dimmable Digital Ballast15% cooler than other digital ballastsPower factor of 99.9% - lose fewer watts from power supply to lampRuns on 120 or 240 volt power, 50 to 60 hertzIgnites both HPS and MH lampsExternal breaker system protects against power surges