This kit contains an Air Coolable Radiant Reflector and an Agrosun Red Sodium High-Pressure Sodium (HPS) Lamp, 1000WRadiant Reflector UnitThe Radiant's generous reflective interior is designed to deliver the brightest possible light down to your plants, while its patented double-wall design makes it the coolest running fixture on the market. Its heavy duty pre-galvanized steel construction is lined with high purity European aluminum for years of dependable growing performance.• Super efficient with both 1000W sodium and halide• Built-in cord set• Integrated hangers• Patented cool running double wall design• Patent pending open roof design helps direct heat away from the plant canopy• Designed exclusively for Hydrofarm by America's foremost lighting design engineers• World's finest European reflective specular aluminum: 99.85% pure with 95% reflectivity• Instructions and lighting recommendations includedAccepts: Sodium 250W, 400W, 430W, 600W, 750W, 1000W - Halide 250W, 400W, 600W, 1000WAgrosun Red Sodium High-Pressure Sodium (HPS) Lamp, 1000WAgrosun Red Sodiums are the best choice for enhanced flowering, increased crop volume, and supplemental greenhouse lighting. Not only will they produce more, larger, and better flowers, but they will do it quicker than common sodium bulbs. Red Sodiums are recommended for situations where high output supplemental light is preferred.1000 watt - 146,000 initial lumens