Aquatic Life 78-Watt Light Aquarium Light, 14-Inch, White/Blue/Royal Blue/Red High Output American-made Cree LEDs produce a spectrum of light designed for growing coral Easily adjust light to adapt to changing tank environment by programming up to three independent 24 hour light cycles Up to 18 programmable color combinations are available to enhance and highlight colors of fish and corals Independently control all four colored LEDs to tailor lighting to specific needs of tank inhabitants Requires a PC running Windows XP, Vista or 7 to program the fixture