I have decided to simply remove an existing bathroom light and fit a new light in its place. There is no new or additional wiring involved just changing the light fitting itself. However, I have taken down the old light and revealed wiring that I don't fully understand. I now have bare wires hanging from the ceiling and a new light to fit without knowing which goes where. I have taken photos if it helps but here is the set-up - I just hope somebody can please help me so I can put the new light up.
1. I have 2 sets of what appear to be red and black.
2. I have 1 set of what appears to be 3 red and 1 black.
3. I have 1 green (earth) wire.
The set-up in the bathroom is:
Dual light switch outside the bathroom wall which operates the landing light, the bathroom light and the extractor fan which comes on when I turn on the bathroom light.
Any help would be appreciated.
PS Forgot to mention that there is also a switch in the entrance hallway downstairs for the upstairs landing light that also does not now work....