The Digital Greenhouse dimmable 315-watt ceramic metal halide system provides high-performance CMH lighting for indoor gardening with the flexibility of dimmable control. High-efficiency/low-frequency square wave ballast technology optimizes output for any PGZ18 315 watt CMH bulb. Exclusive dimmable technology allows the Digital Greenhouse 315w CMH system to run lamps at different outputs; 50%, 75%, 100% or 110% “Turbo” output! Features integrated hood and an ETL listed ballast for professional-grade performance. Grow with confidence, grow with Digital Greenhouse - a USA brand and grow light technology leader since 2005! GrowBright 315W 3000K CMH Lamp Included: - Model: LAM-GB0315CMH3K - CCT: 3000K - Lumens: 33,000 - Rated life: 15,000 hrs. Package Includes: (1) Digital Greenhouse 315w integrated fixture (1) GrowBright 3000K 315w CMH bulb (1) Pair of heavy duty 1/8" rope hangers with metal hooks (1) 120V power cord with grounded plug (NEMA 5-15) Features: - Measures (max): 17.875"L x 9.875"W x 10"H - Dimmable Settings: 50%, 75%, 100%, 110% - Multivolt - operates at 120-240v - Includes 10' power cord with NEMA 5-15 grounded plug - ETL listed for safety and reliability Electrical Specs: - Input Voltage: 120-240v, 50/60hz - Amperage: 3.07@120v, 1.53@240v - Max Watts: 355 (110% setting) - Power Factor: 98%+ - THD: <10% (ultra-low THD) - Socket type: PGZ18, 4K socket (standard 315w CMH lamps) 1/8" Rope Hangers: - Raise and lower light fixture - Locking mechanism - 1/8" rope that supports up to 75 lbs. ea. (150 lbs total) - High-quality stainless steel latches - Perfect for hanging reflectors, light fixtures, carbon filters and ventilation equipment