WRGB II Slim LED Light: 3 in 1 RGB leds, APP controllable, 3 colors(Red, Green and Blue) adjustable. Chihiros WRGB II Slim Edition is designed for planted aquariums. With built-in controller, you can simulate sunrise and sunset effect, customize spectrum intensity at each time point. No need an external timer installation anymore. With relatively low power consumption, with a high beam angle and suite aquarium sizes from 30 to 140 cm in length. Tank Size: 45 cms