* The new A360WE contains an upgraded LED diode that is brighter when compared to the A360 and A360W. The A360 features Kessil`s new proprietary Kessil Logic™, a unique form of spectral intelligence developed for precise color blending and optimal coral growth. In this new design, instead of varying the light intensity of two different channels to find the desired color and intensity mix, users can select the perfect spectrum and color with one knob and then adjust the intensity with the other. Kessil Logic™ will not only dramatically improve the user experience, it will also boost the light output at both ends of the spectral tuning range by as much as 30%. External Controllability In addition to its enhanced manual controllability, the A360 comes with a pair of ports that allows the fixture to be governed by external devices. This new control interface operates within a 0-10Vdc 10VDC range, making it compatible with several popular aquarium controllers. When daisy-chained in series without an external controller, the first A360 acts as the master unit propagating its settings to all other lights in the chain. Shimmer Beautiful shimmering effect gives your tank a natural, sunlit look rivaling MH. It`s like connecting with your own piece of the ocean. Tunable Spectrum Independently adjustable color channels enables tuning a preferred color within the spectral range thousands of research and testing hours determined to be the optimal spectral points for coral growth and color. Dense Matrix LED™ technology blends different light wavelengths before they leave the light, providing uniform color throughout the tank. Single light source eliminates spotlight effect, spreading powerful light over a wide area. UV No matter which spectral point is chosen with the tunable spectrum, proprietary blend of precision UV light encourages coral color. Design Different lens options let you decide between maximum penetration or maximum coverage area. Engineered for long life, quiet operation, efficient cooling and maximum performance, all in a compact, low maintenance and attractive design.