I am looking to change a new light fitting in cloakroom. The old wiring has a black wire with red tape around, which I think signifies a ‘live’ . I also have 3 red cables and 2 other black cables plus the earth. The new LED fitting only has a live, neutral and earth. Please see picture of old wiring. I isolated the system at the consumer unit and then, I wired up the earth to earth, the 3 red to a single choc block type connector ( not connected to new fitting) and the black ‘ live’ to the live and the other 2 black to the neutral. When I turned on everything back in, the LED are flickering like a strobe. I turned off and checked all connections for tightness but the same result.
Any assistance gratefully received