I have a bathroom pull light switch which is connected to an extractor fan. The switch has an L1, L2 and COM, plus earth. There's 1 set of live, neutral and earth wires for this set up. I want to add a single spotlight with transformer over the shower cubicle and have connected the cable from the spotlight to the pull switch. When I switch power back on the light and fan are on but no spotlight and when the fan and main light are switched off, the spotlight is on. Any help please? DJ

Cable from the transformer must be connected to the switch the same way the cable from the fan and light are connected.