This product is a remote dimmer controller which offers both switch and dimming functions. Designed with a touch color wheel, the dimmer controller offers smooth dimming without any flickering by slide touching the wheel for single color LED lighting. Each LED dimmer can control 4 different zones separately or synchronously with endless receivers in each zone and 3 different scenes can be saved for each zone. 25%, 50%, 75% and 100% brightness can be accessed directly by buttons. Controller defaults to the previous configuration after being powered on.