This 4 zone 2.4G RF RGBW Controller is the touch button RF wireless remote controller, the most advanced PWM (pulse width modulation) control technology have been adopted. It can be installed & used easily, plenty modes can be selected, speed & brightness can be adjusted with the remote. It also has memory function because we inside the memory chip on the PCB. With all these high functions, we still make it so tiny, and make it more economical and practical. It’s mainly used to control all kinds of constant voltage led lights, such as: LED source, LED strips, led wall washer, wall Glass curtain lights, etc.