You are reading a single comment by @Airhead and its replies.
Click here to read the full conversation.
-
3 core + earth is standard for hallway lighting. The problem is only 1 of the 2 line conductors will be carrying 240v (the 3rd conductor will be neutral). You can't connect the 2 line conductors together because that would stop the 2 way switching from working. So whichever line conductor you connect to for your outside light will be switched on and off by the hallway switches.
It's this kind of thing that keeps sucking you back into the problem thinking it can be fixed :)
Airhead
In your previous post, the second diagram has 3core +earth dropping down to the switch. The extra conductor would make it possible, but without it your stuck.
Smart bulb /motion sensor switched?
Pull through another cable?
Move house?