RF 24 key Led RGBW Controller adopts the most advanced PWM (Pulse Width Modulation) digital technology with 4 channels constant voltage led RGBW controller. This model designed for RGBW/Y led products. Adopts RF 24 key remote, RGB and W each have independently control area without interference. Especially, it is designed with synchronization function.                                    http://www.hoionlighting.com/