Samyo 4 Channels DMX-512 Decoder Controller Dimmer for RGB LED Strip Lamp Light Receive standard DMX-512 digital control signal and transformed it into PWM signal for driving LED. Can connected with numbers of DMX Decoder to increase the output power to realize all kinds of changing mode. Can also be used as the synchronous controller to controlled the LED alone,it can realize the synchronous effects. Easy to use. Each DMX common controller occupied 3 DMX address, DMX address can be set through dip switch. Input voltage: DC12~24V. 4 output channels, 4 amps per channel.