Chihiros C II RGB is slightly different than the C II White. C II RGB includes red. green. & blue LEDs. The LED is programmed via the “My Chihiros App” with built-in Bluetooth & does not need a external controller. The app offers individual control over the three colour channels “R” (red). “G” (green) and “B” (blue). allowing for ramping of each channel. sunrise/sunset. & a built in timer. The Chihiros C II comes with a 360 degree swivel allowing you to cover in any direction from 20 – 36cm. Maximum glass thickness 8mm Specifications : Voltage: 110 ~ 240v Power: 20w 40 RGB LEDs400-700nm 1580 Lumens Fits Aquariums20 – 45cm(7.9-17.8in) Built-in Bluetooth