Super Compact 3 Channel DMX512 Power LED Driver Features: 1) 3 output channels; 2) Constant-current output: 350mA; 3) Wide input voltage range from DC 12V to 40V; 4) Can driver 1 - 8pcs of 1W LED in series; 5) 0 - 100 % dimming output through PWM; 6) Compatible to international standard DMX512 input port, or RS485 port available; 7) External manual-control connector; 8) Auto running mode available through DIP switch; 9) Working current: 350mA per channel; 10) High efficiency up to 90%; 11) Compact design, easy for installation ; 12) Dimension (mm): 70 * 50 * 15 (L * W * H)