Hi there,
This is probably a classical question but couldn't find the answer :x
I have a 2 way switch but it is connected the way on attachment. I also add a photo of wiring on the "main switch" were I also have a neutral cable. The second switch is located upstairs and it only has the 4 wires that show up in the 1st picture - earth, comm, L1 and L2.
Any ideas how to add a shelly 1L with neutral here?
Many thanks!