SPI Stair Step Light Controller with Signal Amplifiers Human Body Sensors Synchronized Control 5CH for Color LED Lamp DC12-24V Product DescriptionMain Control: Rubber Shell Staircase Light Controller (main controller)Working signal: DMX/SPI signalWorking voltage: 12-24VNumber of keys: 6 Sub-control: DMX512 decoder(Sub controller)Working signal: DMX signalWorking voltage: 5-24VOutput current: 5*6A/CHNumber of buttons: 3Note: One Sub management DMX512 decoder can be connected to 5 steps stair lights(Please buy enough quantity in step with your individual needs) Human body sensing system :(need to be installed on the entrance and exit of the staircase)Working voltage: 1 mode: human body sensor Stair comfortable connection required equipment:A grasp control (rubber shell stair light controller)Sub-control (DMX512 decoder) in keeping with the variety of staircase steps, five steps need a sub-controlTwo human physique sensing devices kit includes:If you order the most important controller kit: 1pcs main controller 2pcs human body sensors 2pcs sub controllers If you order sub controllers: solely 1pcs sub controller(5 steps choose one sub controller) We will ship in line with your options!