what peccavi says is true,to find the switch wire,turn off the power at the consumer unit,remove all wires from the ceiling rose,remove wires from the switch,now get yourself a test meter set it on ohms scale,join the switch wires together,go to the ceiling rose,test each couple of wires,thats the ones in same sleeve,get someone to open circuit the switch wires as you do the test,when you find the switch wire,put one end of it in the central connection block of ur ceilling rose,and the other end of it to the flexi cable ,now fit the other two reds into the central connection block on the rose,and the blacks,or blues into the neutral connection with the flexi cable,rewire the switch,turn power on,and if you followed my instructions,your light will now work
mm, December 2012