In the dimmer switch there are also three red wires and one earth.
Two reds are connected to 'c' the other one is connected to'L1'. earth is connected to earth.
PS. I've been trying to remember how they were connected in the ceiling rose. I'm almost certain that red (1) and red with black...
Sorry for be not being clear enough in the first instance.
the other red does indeed share the same cable as the green and yellow wire. Unfortunately I do not have a multimeter.
Thanks again
Help please. I have removed a ceiling rose to hang a chanderlier with a L/n/E connection but I have now realised that the wires from the ceiling are not standard.
The are three wires, one red, another red with a grean and yellow, another red with a bit of black tape on it.
I was epecting to...