Also a Z-Wave wallmounted switch with wiring can be used if you don’t connect a load/lamp to the switch.
Haven’t seen the Neo Coolcam in this topic. I have some of these installed.
The Z-wave commands can be received by the hub and switch on/off the lights you program, they don’t need to be connected directly to the switch.
They are available in 1- and 2-gang models, EU & US version (frequency & size of the mounting).
Neo Coolcam wallmounted switches
Nice is the integral light and the tip-touch sensor (behind glass front).
You need phase/line + neutral connected to get the switch working.
It is a Z-Wave device, check for the proper frequency.