OCReef's XP-E 60-Watt CREE LED Aquarium Light uses 20 3-watt high intensity LEDs in a configuration designed to provide extreme light spread with penetration from 24 inches up to 48 inches of water depth. The unit measures 15.8 in. in length by 5.6 in. in width bu 3 in. in height. The LEDs are rated for over 50,000 hours of life, and the system is available in three powder-coated casing colors: black, silver and white.