The Harvest Sun from Custom Automated Products are the better garden lighting ballasts available. The ballast features our AlumaLite ballast core and an extruded aluminum case. All C.A.P. Harvest Sun Ballasts can be run at 120 or 240 volts. No rewiring is necessary. 240 volt power cords are available below. They will all run either M.H. or H.P.S. bulbs (with the exception of 600w which will run H.P.S. bulbs only.) Harvest Sun ballasts carry a 5 Year rebuild or replace warranty.