American Dj Sp4 Led  4 Channel Dmx Relay Pack Desinged For Use With Led And Conventional Lighting Dual Plug In'S Per Channel, 3 Pin Dmx Linking,Multi Purpose Design Allows The User To Clamp Unit To Truss Or User Can Slide Onto A T Bar Stand. Digital Menu Allows The User To Select Modes And Address The Dmx Channel. 4 Channel Switch Pack Designed Specifically To Switch LED Effect Lights ON And OFF Built In IR Sensor For Use With ADJ LED RC (Wireless Remote Controller)