Apollo Horticulture GLK600CTAC2HPS 600 Watt Grow Light (2 HPS Bulbs Only) Digital Dimmable HPS MH System for Plants Air Cool Tube Hood 1- 600 Watt Dimmable Electronic Fan Cooling Ballast; Acceptable input: 110v - 240v. Dimmable Option: 50%, 75% & 100% 2 - HPS Bulbs: Lumen - 87,000 1 - Air Cool Tube: 26" x 25" x 7" Duct Size: 6" Made of Glass & 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 / 2 - HPS Bulbs / 1 - Digital Ballast / 1 - Pair of Hangers / 1 - Timer / 1 - Instructional Pamphlet