Powermaxx Digital Dimmable Grow Light System for Plants Smart 6" Air Cooled Reflector Set (400 Watts, 2 Bulbs (HPS & MH)) 1- 400 Watts Dimmable Electronic Fan Cooling Ballast; Acceptable input: 110v - 240v. Dimmable Option: 50%, 75%, 100% and 110% 1- Super HPS bulb and 1 MH bulb 1 - SMART Air Cooled Reflector 24" x 17" x 8" Duct Size: 6" with HINGED GLASS 1- 24 Hour Timer Controller 1- Pair of Rope Hanger : Weight Capacity - 150 lbs per pair w/ Improved Metal Internal Gears; One Click at a Time