... /hps lamps, reflectors, timer and grow yo yo. Hydroponic Systems The lighting system may including:-Grow light ballast 400W/600W ... : 1) Outstanding energy-saving effect A) Low power loss B) High power factor C) High lighting efficiency 2) Perfect protection ... function B) Trouble-detecting protection function 3) Dimming, adjustable output power 4) Light weight, small size, non-flickering, noiseless 5) ...