HPS/MH:35W,50W,70W,100W,150W,200W,250W,320W,400W,575W,600W,750W,1000W,1500W both voltage: ... function UL and CE MH575W-220VAC Digital Electronic Ballast (MH-575W-220-LNN) Strike voltage: 3.5~5KV Required lamp voltage: ... 99 Efficiency: 93% (Max) THD: <10% Output power: 575W Current crest factor: <1.5 Output frequency: Approx. 170 ... regulation: IEC61347 EMC: EN55015 Stage light Ballast (MH-575W-220-LNN)