CMH 630W FIXTURE - NO LAMPThe hottest technology in energy efficient HID lighting is now available from Nanolux Technology Inc. Ceramic Metal Halide, or CMH for short (some refer to it as CDM), is becoming more popular in the horticultural industry. The CMH lamps have a very broad light spectrum which is more similar to the sun itself than any other form of HID lamp. We have taken CMH technology and increased its operational efficiency, making the most comprehensive spectrum of light output for an HID fixture even better. The CMH lamps also have increased efficiency in AR/Watt compared to other forms of HID lighting. The CMH fixture can be used as a primary veg light; a primary light for SOG applications; or a supplemental full spectrum light for large flowering operations.The CMH 630W Double Lamp Fixture hood is optically designed to give a balanced footprint and is perfect in larger grow environments such as commercial installations where lighting overlap can be accomplished. Light weight and cool running Nanolux ballast the industry has come to trust.ETL Listed.97% GERMAN REFLECTIVE MATERIALFully sealed commercial designed ballastNCCS ReadyUses 315W PGZX18 base CMH lampsInput Voltage: 120/240VInput Frequency: 50/60HzAmperage Draw: 5.2/2.6PF: 0.99THD: 1.7Fixture Dimensions: 27.6" X 11.6" X 8.3"