... Electronic Ballast Performance specifi cation information is subject to change without notifi cation.1. Wide working voltage range:AC100V~250V, it ... :efficiency above 93%, and save 15-40% energy3. Widely used on road lightings, gymnasiums, squares, shopping malls, halls, billboards and hydroponics ... dimmer speeds: 50%,75% and 100% output Hydroponics electron Ballast(Without fan )