Exposed ballast design is compact and runs cool! Hard Core® offers superior cooling capabilities while extending the longevity of the capacitor and ignitor. Dual universal lamp cord receptacle is compatible with all Sun System® brand reflectors as well as other branded reflectors. Powder-coated steel housing with louvered venting and solid design helps protect internal components. Rubber feet reduce noise & vibration. Excellent ballast quality with high temp 150°C wire connections will provide years of trouble-free operation. Removable stainless steel handles allow easy handling. Ballast is hardwired with an eight foot 277 volt power cord including a L7-15p twist lock plug.