... of energy-saving, quiet and long lasting, reliable quality 1000W hydroponics Electronic Ballast Performance specifi cation information is subject to change ... road lightings, gymnasiums, squares, shopping malls, halls, billboards and hydroponics lighting systems.4. Protective function:break, short circuit, over or short voltage ... .8. 3 dimmer speeds: 50%,75% and 100% output Hydroponics electron Ballast