...how you're meant to wire lighting sockets?
So, I understand the two main ideas of wiring power circuits - spurs (where you have a wire from the fuse box to the first socket, then first to second, then second to third, third to fourth, etc, then say it stops at some point) and ring circuits (the same as spurs but when you connect the final power point back to the fuse box).
this consists of using 3 wires (red, back and green/yellow, or brown, blue and green, which mean +,- and earth) and it's a fairly simple chain.
However, for lighting circuits, I don't understand. There's a power wire, and a lighting wire for the switch (which has 4 wires in it). I understand this.
The light switch and the light (or lights) have to all have power. I understand this. However, I don't understand what the lighting cable is for. It connects between the lighting switch and the light? what if you have multiple lights and multiple switches? is that from both switches to both lights (separately?)
when I googled on this last I couldn't find much conclusive