The Chihiros RGB VIVID II 10TH EDITION serves the complete color spectrum of aquatic plants with its optimized design of Red, Green, & Blue colored LEDs. It is suitable for very densely planted aquariums that need intense lighting over a large spread. The Vivid II’s utilizes red, green, & blue LEDs on one single chip ensuring the most natural color spectrum possible. The Vivid II’s different LEDs produce a high spread to avoid shading & suits densely planted tanks 60-90cm(24-35in)L.