With a slim, partially exposed design, the minimalist 400-watt Sunspot® SL Ballast is practical for any indoor gardener on a budget. It offers a full spectrum of convenient features including metal halide (MH) and high pressure sodium (HPS) capabilities, 120-volt and 240-volt functionality, detachable steel handles and plastic feet.

The 400-watt Sunspot SL MH/HPS Ballast includes an 8-foot, 120-volt power cord (240-volt cord sold separately) and a two-year warranty.