@Smarthouse1 Can you see the device in the Tapo app when on 4G? Do you have a TP-Link account? To test your setup, you don't have to leave your home. Just turn off wifi on your mobile device...

@Zmajur The solution for your problem could be the S220! One side connected to the bulb, the other side used solely as a smart switch to control the bulb. That way you can turn it completely off or...

@Zmajur I mean that's obvious and easy. The wires don't have to go through the switch! My S220 was laying on the living room table and of course I was able to control the light bulb in the bathroom....

@Wayne-TP Aqara Smart Wall Switch H1 has a decoupled mode, some Inovelli and Lutron switched can either cut the power, control the bulb or both.

Better late than never: Nope. If both lamps were in the same room, connected to the same neutral, it would be easy - just connect one of the two phases L to the switch. But in your current setup, the...

@Wayne-TP Bathroom fans that are hard-wired to the light fixtures. Very common in Europe. If you switch on the light, the fan turns on. The fan only turns off, when you switch off the light. I'm not...