Light Switch Wiring Diagrams For Bedroom. The green wire a ground wire connects with the green screw in the switch or the electrical box. This is where you can control the same light via two switches.
From the switch new 2 wire cable is run to the new light location. The wires would also be covered by the protective outer sheath cable. Once connected the light pendant should look like this click to enlarge.
When l1 is off l2 would be on.
The light switch has three wires. Using the same numbers for the cables as above in the ceiling rose diagrams this is how the junction box would be wired to replicate the circuit. Ceiling rose diagram for old wire colours. Sometimes it is handy to have an outlet controlled by a switch.