Has anyone found a 2 gang wireless light switch that does not require a neutral line? I have bought the Sonoff T1 2 gang switch without realising that none of the light switches in my house have a neutral line.
I’ve seen the Xiaomi wireless switch which is not in line and is powered by coin cell. This got me to thinking, why is there not a version of this without need of a neutral line and powered by button cell?
Because a permanent WiFi connection would drain the battery very quickly. Such a switch would need to use another connection type.
There are 433MHz switches like that, and I believe the Philips Hue Switches are battery powered as well.
And it’s rather common that light switches don’t have neutrals attached. Switches just connect or “break” the path the energy is going through physically. Neutral would only be needed if the switch for some reason needs power itself, which mostly isn’t the case.