1000W(120V/240V) Dimmable Electronic Ballast FITBR ballast Power Range:70W,100W,150W,250W,400W,600W,750W,1000WFeature:Switchbale for 120V and 240V(Input voltage Range:90V-265V AC)Input Freqence:50~60 hzPower Factor:>0.99THD:<8%Run with both HPS and MH bulbDimming Function is option. 1000W Dimmable Electronic Ballast For HPS and MH lamp