The Marineland Reef Capable LED Light system; is specifically designed to provide beautiful shimmering light; that benefits corals; fish and invertibrates in reef aquariums. These low profile; energy efficient; high output; LED light systems provide comparable light output to HO T5 fluorescent fixtures; without the energy consumption; heat output; or toxic materials. Built in heat sink requires no cooling fans so fixture is completely silent during operation. The 48 to 60 in. Reef Capable LED light system utilizes a combination of (46) 10;000K white and (8) 460nm Actinic Blue 1 watt LEDs. The combination of LED bulbs in the fixture produces a light spectrum that is beneficial for the health; color and growth of reef aquarium plants and animals. White LEDs include polycarbonate focusing lenses; and Blue LEDs have special dispersion polycarbonate lenses to provide better color mixing; and light pentration. The built in digital timer system; allows for complete 24 hr control of the fixture; including independant control of the blue and white LED channels; for simulated dawn and dusk lighting. Expandable tank frame mounts support fixture in place on almost any 48 to 60 in. aquarium. Energy efficient LED bulbs; last up to 50;000 hrs; and never need replacement.