In this, part 2 of our article on fitting wall lights, you will learn how to connect your new lights up to the power and finish off your installation.
Switching
Assuming you would like to use your existing switch to operate your new lights, you will need to run more wires from the switch to the ceiling in the same way described above. You may need to knock out an extra plate on the back of the switch housing to feed your new wiring through. The wiring in the switch is very straight forward and you should be able to simply mirror the existing wiring. Just remember you must mark the neutral wire with red tape as this is now a switched live wire.
The process is still the same if you wish to add a new switch especially for your wall lights. Simply find a location for it, chisel out the path for the wiring, attach the switch and feed the wiring into the ceiling, then plaster back over the wires.
Preparing the Feed
In order to power your new lights, you will need to add to the existing lighting circuit. To do this, simply find a live wire above the ceiling (the wires that join junction boxes together), cut the wire and insert a new junction box and wire feed. This is a simple operation as there are only 3 of each live, neutral and earth (including your new set) to connect. You now have a new feed from the supply for your new lights.
Finishing Off
All that is left now is to connect the wiring above the ceiling. Simply run your new feed into a new 4-way junction box and connect your switch and two wall lights to it. All 4 earth wires go to the same terminal, the 3 neutral wires from the feed and two lights go to the same terminal, the 2 live wires from the feed and the switch go to the same terminal, the wire returning from the switch will need to be marked as a live wire by placing red insulation tape over it as this is now the switched live and this wire should be connected to the same terminal as the two live wires from the lights. The installation of your new wall lights is now complete, so you can turn the power back on and test them out!