HTG Supply 400-Watt Ceramic Metal Halide (CMH) Complete Grow Light, Bulb Included - 240v Electrical: 400 watts, approx. 1.67 amps @ 240v ; ballast features built-in 9' power cord with standard US 240v grounded plug (NEMA 6-15), and built-in 10' socket cord with mogul-base socket Innovative open-air remote ballast design ; ballast handle features key holes for easy wall mounting Includes high-output 400-watt ceramic metal halide (CMH) bulb with enhanced horticultural spectrum & 41,000 lumen output Suggested coverage area: 4' x 4' Ballast measures: 9" long x 4" wide x 5.5" high ; Reflector measures: 16" long x 13" wide x 6" deep - hanger attachment hardware included