Powermaxx Light Digital Dimmable HPS Grow Light System for Plants - Wing Set (400 Watts, 1 Bulb (HPS)) 1- Dimmable Electronic Fan Cooling Ballast; Acceptable input: 110v - 240v. Dimmable Option: 50%, 75%, 100% and 110% 1- 400 watt super hps bulb 1 - Wing Reflector: 19"x15"x4.5" Made of German Aluminum 1- Pair of Rope Hanger : Weight Capacity - 150 lbs per pair w/ Improved Metal Internal Gears; One Click at a Time 1- 24 Hour Timer Controller