Radiant DE Reflector Unit The Radiant\’s reflective interior is designed to deliver the brightest possible light down to your plants, while its patented double-wall design helps to keep it running cool. Its heavy duty pre-galvanized steel construction is lined with premium European aluminum for years of dependable growing performance. Efficient double-ended design offers longer lamp life and a more balanced light spread World\’s finest European reflective specular aluminum: 99.85% pure, 95% reflectivity Patent pending ridge vent system Double-ended K12 x 30s sockets Integrated 15\’ lamp cord Integrated hangers Designed exclusively for Hydrofarm by America\’s foremost lighting design engineers Instructions and lighting recommendations included CSA certified