Rotary dual color LED controller IL-WWCW-KC is a RF wall mounted control with switch, color temperature and brightness adjustment functions for dual color (warm white and cool white) LEDs. The rotary dimmer controller features accurate and smooth color temperature adjustment as well as dim your lights from 0.1% to 100% without any flickering. Double clicking the rotary knob enables the controller to switch from brightness dimming to color temperature adjustment. Each controller can control 1 zone with endless receivers. Available in standard Europe size and US size as well, the dimmer can be suitable for electric wall boxes from different areas.