3CH 10A Flush-mounted Switch Actuator, input voltage: AC100-240V, 50/60Hz), 3CH, 10A/CH relay output, 7CH dry contact input, 7CH LED output, 12mA/CH, long press the button to control all the relay channels on/off, with scene control, staircase light control, delay control functions, must be work with Auxiliary Power input DC20-30V