I understand that I can use scenes facility to link two switches so that I can essentially switch the light at the top of the stairs on and off from both downstairs and upstairs.
It seems that there is a requirement to have a feed from one switch of both live and neutral. I have two lighting circuits (one upstairs the other down). If I supplied live and neutral to each switch but from their respective circuits, would that work.
I've enclosed the recommended wiring. Will this still work if the live and neutral feeds are from different circuits?