Use for around 1 year +. Good condition. Normal use set 70% blue and 10% white only. https://www.freshnmarine.com/products/celestial-c35-f Description EFFECTIVE: 12IN X 12IN | MAXIMUM: 14IN X 14IN Programmable color channels / Integrated dawn to dusk Smart Cooling Technology – Temperature controlled fan – Advanced heat-sink – Integrated heat pipes 90 degree lens in junction with nano-tech painted reflective cups Licensed COB multi-chip LED Versatile mounting system Utilizes Cree Ez1000 core chip The Maxspect Celestial is a new controllable LED spotlight with a set of attractive features. This 35-watt spotlight is fully controllable by an intuitive built-in controller. It makes for a perfect option for illuminating pico and nano aquariums up to a 14in cube. The Celestial Spotlight utilizes the latest LED multi-chip technology with its Cree EZ1000 core chip. RGB FULL SPECTRUM – C35-F The Celestial C35-F Spotlight provides primary full spectrum illumination great for pico and nano reef aquariums. The Celestial C35-F LED mulit-chip is controllable across 4 separate lighting channels. Channel A Super Actinic (x2)410nm, (x2)420nm, (x2)430nm Channel B Blue (x2)445nm, (x2)465nm, (x2)485nm Channel C White (1)5000k Cool White, (1)3000k Warm White, (1)660nm Hyper Red Channel D White (1)5000k Cool White, (1)3000k Warm White, (1)500nm Cyan Sent from Singapore Reef Club mobile app