Our Harvest Pro? ballast with dual input voltage easily switches from 120 to 240 volt power! Simply unplug detachable 8 foot 120 volt power cord (included), turn power plate around for 240 volt power and plug in a 240 volt power cord. (240 volt power cord sold separately, Part #903082). Dual universal lamp cord receptacle is compatible with all Sun System? brand reflectors as well as other branded reflectors. Louvered end plates and heat slots help cool the ballast for years of trouble-free use! Aluminum ballast enclosure is engineered to dissipate heat and keep components cool. Heavy duty handle for easy carrying or wall hanging. A barrier wall between ballast and the capacitor/ignitor helps keep the critical components cool. The capacitor and ignitor temperatures are greatly reduced by being separate from the ballast core. Lower temperatures mean better reliability & longer life. Uses high quality capacitor using German sourced film to ensures long lasting durability. EZ Cap? Door offers easy access to the capacitor in the event it needs to be replaced. 902449 has a 2 year warranty.