QAP1017 Features: * Lamp * T5 high output actinic blue light * Emulates the softer shades of blue light found at dawn, dusk and in deeper water * Promotes photosynthesis in corals and live plants while enhancing the natural beauty of aquarium life Options: * Available in 24"", 30"", 36"" and 48"" sizes Specifications: * In 24W, 31W, 39W and 54W Dimensions: * 24"" Weight: 0.41 lb * 24"" Dimensions: 1"" H x 2"" W x 25.5"" D * 30"" Weight: 0.48 lb * 30"" Dimensions: 1"" H x 2"" W x 29.38"" D * 36"" Weight: 0.64 lb * 36"" Dimensions: 1"" H x 2"" W x 37.88"" D * 48"" Weight: 0.8 lb * 48"" Dimensions: 1"" H x 2"" W x 49.75"" D