Recommended usage scenario of Terncy switch module. Usage scenario 1: use with presence sensor Any sensor with dry contact can be used with the switch module How to connect 1.Connect L and N line, connect L line to L, N line to N; * Note: Power off during installation to prevent electric shock 2.Remove the cover of the interface, insert the 6-pin header into the interface firmly; * 12V is positive pole and GND is negative pole