Can anyone explain about lighting neutral wires (blue)?
I have a 3year old house, which has blue wires in the back boxes. I am assuming that this is the neutral. On my current 1 gang 2 way switch there is L1, L2 Common & earth.
If I were to fit a wifi light switch requiring a neutral connection, am I safe to connect these up as indicated, and please, can anyone explain in layman's terms how this works?