Light Switch Wiring Diagram Red Black White. 3 the live feed to the light switch. The electrical box for this switch only has a black wire white wire red wire and ground.
The lower left screw is the common and gets the black wire from the load 3 cond. Wiring a three way switch this is a typical wiring setup for a 3 way light switch with black white red and ground wires. Connect the black wire from the light switch box to the silver screw on the single pole light switch.
If its just a light fitting then just a live neutral and earth should be there a red or brown should connect to the black or white and a black or blue should connect to the black or whiteconnect one the other follows.
The red wire from the feed cable is connected to the top terminal the red wire going to the light is connected to the bottom terminal the black wires from both cables are connected together in. It is really simple to attract a wiring diagram. The red wire the red wire is most likely a spare wire that was intended to be used when wiring for a ceiling fan. Green or bare copper wall box wire ground.