I'm changing a ceiling light and am a bit confused (hence why I'm here!) There are four cables coming out of the ceiling. Two cables with red/black/yellow&green wires, one cable with just red/black wires and one cable with only a red wire. I've (successfully) changed lights on a loop system before, but it's the first time I've come across this... Edit> Schoolboy error I'm afraid. No pics or notes taken of previous connection. My ever-so helpful wife disconnected them whilst I was washing the car (as prompt for me to get the new lights up) Update: an earth wire has been cut short in the switch cable. And the single red wire must be from the extra wall switch I found!
I'm in the UK btw 
