The NextGen Electronic Ballast is the smallest, lightest, most user friendly ballast on the market today. Runs H.P.S. or M.H. bulbs, and features 90-260v input voltage. This ballast produces 30% more light than a standard core and coil ballast and has universal lamp receptacles. Its fast lamp ignition, constant lamp voltage, flicker free output, thermostatically controlled fans, and the ability to run bulbs up to 65’ from the ballast, make the NextGen a must for serious gardeners. Comes with 120 volt power cord, 240 volt power cord available separately. The NextGen Electronic Ballasts carry a 3 year replacement warranty + a 2 year pro-rated warranty.