This revolutionary dimmable digital ballast is a premiere choice for your indoor garden. The Nanolux NN600D operates metal halide or high pressure sodium lamps, and uses cutting edge circuit board technology to make it half the size of traditional ballasts at a quarter of the weight. This ballast utilizes an LED notification system, allowing the user to easily diagnose problems such as fan failure, under or over voltage, and thermal overload protection. Customize your light output between 100%, 75%, and 50%. The Nanolux features energy-savings up to 30%, compared with magnetic ballasts, and runs 20% cooler than other digital ballasts on the market. Ballast comes pre-wired with a dual-lamp receptacle, allowing the user to plug in all common reflectors without an adapter plug. Includes a 120-volt power cord. Enhance your indoor garden with the Nanolux NN600D digital ballast today!