New switch has L then L1 and l2 on both banks it's connected to a single switch at top of stairs which has and coloured earth in to com then two reds in a terminal then black and blue wires connected to another terminal guessing these are neutrals
hi all new member needing help bought a double gang switch today from bq went to swap over all connections are marked different new switch has L then L1 then 2 This on both banks old two way switch has 5 going into it two red on blue yellow and a black could any help how it connects to new...