Switch box is as I said - just checked - there is no other unused cables. It looks as if there is one twin and earth coming to it, and three live and earth.
I am guessing that you would expect another neutral (black) in there?
Can you explain what you would expect to happen in this...
The Switch for these two outside lights is a double switch, it also controls an indoor hall light which can also be controlled on ne other switch.
Therefore the switch box was as follows:-
Top
L1 - empty
L2 - empty
Common - Red
Bottom
Common - Red
L1 - Red
L2 - Black...
Cables already exist for two outside lights - either saide of front door.
At each location there are two cables protruding through the stonework, one cable is twin (red + black) and earth, the other is a single (red) and earth.
The wall switch had been left with one (red) wire unconnected...