I have a few light switches that don't have neutral. Which shelly devices can I use for them? I read that they Shelly 1L can work without neutral, but as far as I can tell it's no longer sold.
I have this two-way switch for stair lights. You can turn on the lights from the ground fool and from the first floor.
and I also have this shelly 1.
How can I connect the shelly 1