Hi Guys, I've put an external light up outside, wired it in correctly and bought an internal switch with L1,L2,L3&L4 on the back. I have 6 wires, two of each (N,L&E). In the switch I put both the Live wires in L1 & L2, then the Neutral wires in L3 & L4 and have earthed back to the ma...