Hi, I have a hallway ceiling light that has a 2-way switch at the top and bottom of the stairs, controlling 1 light. See attached picture of connector block with a single core wire (red) and a twin and earth wire.
Second picture shows the switch at the top of the stairs. Twin and earth has the red and black going in to L1 and L2 with brown sleeving. Single core has the red with brown sleeving going to live.
Removing the block and replacing with a new light, would it be red from the single core to live on the light fitting, red from the twin and earth to loop, neutral to neutral and earth to earth?
Second picture shows the switch at the top of the stairs. Twin and earth has the red and black going in to L1 and L2 with brown sleeving. Single core has the red with brown sleeving going to live.
Removing the block and replacing with a new light, would it be red from the single core to live on the light fitting, red from the twin and earth to loop, neutral to neutral and earth to earth?

