The LT-851-5A is a 3 Channel DMX LED Decoder for controlling RGB lights from a DMX control signal. Dip switches on the side of the unit allow you to set the starting DMX address. You can then daisy chain multiple decoders together through 3 wire DMX signal. Set them to the same address to have all the LEDs function the same, or set unique addresses to control each decoder independently or together. Each decoder has a max output of 5 amps x 3 channels. Allowing for 180 watts of 12VDC RGB lighting or 360 watts of 24VDC RGB LEDs. Each decoder uses 3 DMX addresses and are connected using screw down style connectors. RoHs, CE approved.