Omega Black 600w Dimmable Digital BallastExcellent Value for Money Dimmable Digital Ballast The Omega delivers many of the features you'd expect from a high end ballast, for a fraction of the price. It comes with 250w, 400w, 600w and Super Lumen settings, and it can be used with both high pressure sodium and metal halide lighting. It's also lightweight, produces minimal heat, and comes with a sleek and stylish finish. For peace of mind, it also utilises soft start and thermal protection