For two way switching you need to replace both switches.
Smart light switch uk no neutral wire.
Although you are limited to only a handful of smart switches that work in a 2 wire circuit and most are dimming devices.
What s crucial here is the dimming functionality.
Standards full wi fi control set scenes ifttt non dimmable.
A big caveat however.
A smart switch can simply tie into the white neutral wires to complete the circuit and get a source of power to keep the radios in the switch working at all times.
Most of the available smart switches for no neutral installs only work with incandescent or halogen lamps.
Some dimmable smart switches can be fitted with no neutral wire.
It still has pieces of the original knob and tube electrical wiring nailed to the floor joists in the basement.
No neutral wire needed no hub direct swap for uk switches.
Yagusmart wifi smart wall light switch no neutral wire required no hub required compatible with alexa and google home app remote control timing function voice control 1 gang 4 2 out of 5 stars 200 15 89 15.
4 smart switches that work with no neutral wire.
This reduces the flow of power from your light to your switch to a trickle.
Fits standard uk 25mm back box.
Adjustable back led light u k.
The line voltage goes to the light first then to the switch no neutral.
Classic design one way two way configurable.
Kasa smart light switch by tp link single pole needs neutral wire 2 4ghz wifi light switch works with alexa and google assistant ul certified 1 pack hs200 white 4 6 out of 5 stars 10 434 limited time deal.
And in the case that your home does not have neutral wires hope is not lost.
My house was built in 1909.