I am trying to replace/connect two spotlights and a switch mounted on a board in my bathroom. There are two sets of 3 wires coming out of the wall, blue brown and green. I assume one set feeds power in and one set takes power out to the next switch in the circuit? The spotlights themselves also have a brown and a blue wire coming out. So I have 8 wires in total - 3 brown, 3 blue and 2 green which I assume all need to be wired to three connectors in the switch? I have tried a couple of combinations but can only get to the stage where the lights come on but as soon as I turn them off all the lights in the house go off as the lights main fuse is tripped. What am I doing wrong?

Jason, February 2010

put the 2 green/yellow in a connector block.
put 3 blues in a connector block.
put the brown from the spotlight in l1
put 2 browns in com on the switch

british jobs for british workers, February 2010