• High tech design by Lighting Sciences, Inc. • German made 95% reflective aluminum interior • Housing is made of electrogalvanized steel • Accepts glass – sold separately • Includes our exclusive Adjust-A-Socket mechanism to center any length of lamp • Accommodates all lamp sizes except BT-56 • Socket assembly & air cooled fittings sold separately • Dimensions: 21” L x 11.5” W x 6.75” H Weight: 7 lbs • UL Listed for use with SUN SYSTEM® Brand Fixtures