Apollo Horticulture GLK600CT24E 600 Watt Grow Light Digital Dimmable HPS MH System for Plants Cool Tube Hood Set 1- 600 Watt Dimmable Electronic Fan Cooling Ballast; Acceptable input: 110v - 240v. Dimmable Option: 50%, 75% & 100% 1 - HPS Bulb: Lumen - 87,000 & 1 - MH Bulb: Lumen - 68,000 1 - Cool Tube: 23" x 6" Duct Size: 6" Made of Glass and 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 Package Includes: 1  Reflector / 1  HPS Bulb / 1  MH Bulb / 1  Digital Ballast / 1  Pair of Hangers / 1  Timer / 1  Instructional Pamphlet