The Kessil Tuna Blue A80 LED Light is half the intensity of the A160, but comes with all the same features and color and control knobs. It's compatible with the Kessil Spectral Controller. This A80 (the Tuna Blue) version is for reef tanks.ALL KESSIL LIGHTS SHIP 2-DAY AIR FOR FREE!Related Categories:Kessil Reef Lights (a la carte)IKessil AP9X Light PackagesIKessil A500X Light PackagesIKessil Tuna Blue A160WE Light PackagesIKessil Tuna Blue A360XE Light PackagesIKessil Freshwater LED Aquarium LightsIKessil LED Aquarium Light PartsIKessil LED Refugium Grow Lights.Helpful Articles: Reef Aquarium Lighting Chart (to find the best light for your situation).