Size:DE Wing Reflector System Hydro Crunch 630-Watt Double Ended Ceramic Metal Halide Ballast features a highly efficient, low-frequency square wave. Ceramic Metal Halide lamps offer a spectrum and CRI that closely resembles natural sunlight over any other form of lighting available on the market, they also have increased PAR/Watt efficiency leading to better quality while using significantly less power. The Hydro Crunch DE Wing Grow Light System includes an aluminum reflector with 15 ft. lamp cord. To round out this incredible Hydro Crunch DE CMH light system we have included a commercial grade Double-Ended (CMH) ceramic metal halide lamp rated for 10,000 hours of use with an initial output of 78,500 Lumens. Comes complete with 630-Watt CMH Ballast, DE Wing Reflector, Double Ended CMH bulb 3100K, timer and adjustable light ratchet hanger 630W CMH Low Frequency Ballast Features: 630W Ballast works with all Standard S plug (Double Ended) Reflectors. Low-Frequency Square Wave Ballast Fully sealed ballast housing. Dual Voltage 120/240V (120V power cord included with 240V cord Adapter). 2 Year Warranty. 630W CMH Double Ended Lamp 3100K Specification: PAR: 1200+ µmol, Lumen: 78500lm (125LM/per watt). Kelvin: 3100K CRI: 90. Rated life span: 10,000 HR. 1 Year Warranty. Double Ended Wing Reflector (assembly required): Assembled Dimensions are 18” x 18” x 8”. Lamp Compatibility: Double Ended MH/HPS 250W/400W/600W/1000W. Socket type: Double Ended. High quality grade 98% reflective film. Includes industry standard S-plug, 15-ft. heavy duty wire cord with pre-installed socket, socket type: K12X30S.