We here at Grow Light Supply offer the indoor gardener the best 1000W Hps Ballast (s) on the market. For all of those horticulturists looking to have Metal Halide, High Pressure Sodium, 120 Volt, 240 Volt we have them all in stock and ready to ship. Please also look at our offering of 1000 watt high pressure sodium (link), and 1000 W Metal Halide lights (link), to go with these ballasts. Whatever type of closet gardener you are, we carry every article you may need, from complete systems, lights, odor control, to every need you may have for your reservoir. For assistance please call our experienced staff to help with any decisions you may have. Our Selection of 1000 Watt Ballast(s) is one of the best in the industry with over 26 to choose from we have everything form beginner to advanced.