I'm looking to get smart zigbee dimmer wall switches for my home in the UK.
I'd like to get regular (non-smart) looking face-plates with the chrome colour to match the rest of my house.
I found the SONOFF ZBMINIL2 Zigbee Smart Light Switch which appears to be on a great offer for the 4-pack right now (40% off). But I'm not really sure how these things work. How do I know if a faceplate is compatible? How do the faceplates even hook up to this box? Do I need to mount this box inside the wall or is it just loose?