... , mh/hps lamps, reflectors, timer and grow yo yo. Hydroponic Systems The lighting system may including:-Grow light ballast 400W/600W ... details: -The balllast: -With dimmable function: Run at 100%, 75% or 50% power 1) Input Voltage Range: 120V, 208V, 240V 2 ... polypropylene rope- Secures items quickly and easily- Never breaks, slips, or rusts- Great for hoisting and securing-The timer: 7-Day ...