Thank you for all your help, just one more question sorry;
How I'll I know which way round the blue and yellow wires go for the green triangle I've drawn?
That whats confusing me there is blue, red, yellow and black wires. Yes both lights work perfectly, the hall light has a second switch at the bottom of the stairs if that effects anything.
Hi, I am trying to change an old style 2 gang light switch ( one switch hallway light, other switch outside light). When I took the face off the wires didn't seem to make sense. The old one does lable what the wires all are so I don't know where to put them in the new one. Any help much appreciated!