1000 Watt - Digital Ballast - Grow Light Metal Halide or High Pressure Sodium - Dimmable - Pre-Wired with Dual Lamp Receptacle - 120/208/220/240 Volt - Nanolux NN1000D Brand: Nanolux - Wattage: 1000 Watt - ANSI Code: S52/M47 - Ballast Type: Electronic - Bulb Type: Metal Halide/High Pressure Sodium