Quietly and efficiently power 1000W metal halide and high pressure sodium lamps with a 1000W ION Electronic Ballast. This versatile 120/240V workhorse features 400, 600, 1000 and Super Charge wattage settings for a wide range of growing applications. Integrated circuit and thermal overload protections provide peace of mind while soft-start technology reduces lamp stress and ignition delay resolves spikes in power draw when firing multiple units simultaneously. Ballast is RF shielded, generator-ready and compatible with a multitude of reflectors and remote cord sets. Includes an 8’ 120V input power cord (240V cord sold separately) and full three-year warranty. Housing is 15.13”L x 7.5”W x 4.75”H, excluding removable handle.