Hi guys, Appreciate I need to get someone in to do it - which they will be. Im just trying to understand how the wiring works. So we've got an extractor in the bathroom which I would assume is fed from the list live. The 3 core plus earth then runs to the pull chord and out again. Ive bought (which I thought would save the sparky doing it) a pull chord switch - 1 common L1 and L2. Is it both lives (brown) to common both switched lives (grey wires) to L1 and neutral (black) to L2 and obviously earth to earth? Thanks!!