High quality ballast will insure years of trouble-free use. Extruded aluminum ballast enclosure dissipates heat for maximum reliability. The powder coated finish is attractive and durable. High temperature capacitor insures long lasting durability. Our exclusive Power Pointer tm easily switches from 120 to 240 volt power Simply unplug the detachable 120 volt power cord included, turn the Power Pointer tm arrow down for 240 volt power and plug in a 240 volt power cord sold separately. THATS IT A barrier wall between the ballast and capacitor/ignitor helps keep critical components cool. Lamp cord receptacle - accepts all Sun System lamp cords sold separately. Heavy duty handle for easy carrying. Rubber feet reduce noise and vibration.