Sun System Hard Core 1000-watt Switchable Ballast, 120/240-volt - 902650 600 volt lamp cord receptacle - accepts all Sun System lamp cords (sold separately) Our Hard Core ballast with dual input voltage easily switches from 120 to 240 volt power! Powder coated steel housing with louvered venting and solid design helps protect internal components Rubber feet reduce noise & vibration 2 year warranty