Orange County ("OC") Reef LED Aquarium Lights - highest output in their class - built to last. Quality components, stylish housings (anodized aluminum/high-grade acrylic), precision optics, long-lasting industry-leading LEDs. A variety of styles and sizes allow you to combine and create your own unique High-Output LED Lighting System. We keep our prices low, by avoiding expensive advertising and fancy packaging - our products and reputation speak for themselves. OC Reef LEDs are the professional's choice. Experience extreme performance at an affordable price! (Pre-Assembly in the U.S.A.) View this image of a 500 gallon reef tank that has CREE LEDs lighting it up!