Apollo Horticulture GLK400LS24 400 Watt Grow Light Digital Dimmable HPS MH System for Plants Air Cool Hood Set 1- 400 Watt Dimmable Electronic Fan Cooling Ballast; Acceptable input: 110v - 240v. Dimmable Option: 50%, 75% & 100% 1 - HPS Bulb: Lumen - 53,000 & 1 - MH Bulb: Lumen - 36,000 1 - Air Cool: 24" x 17" x 9" Made of Galvanized Steel & German Aluminum 1- Pair of Rope Ratchet : Weight Capacity - 150 lbs per pair w/ Improved Metal Internal Gears; One Click at a Time 1 - 24 Hour Timer Controller