I’ve got some Aqara H1 switches (single/double rockers, with/without neutral). On Friday an electrician will come to install them. What do we need to know about how to install these in order to be useful both with Zigbee2MQTT as well as when HA might be down?
That is, do we need to do something in order for the Aqara switch to always let power through to the smart bulb? That. Is, the smart bulb (Zigbee or WiFi) should be possible to control from HA, regardless if it’s switched on or off. And what to do for the Aqara H1 to work also if HA may be down?
The electrician is familiar with Plejd smart switches, but not with Aqara. And myself, I’m asking an electrician to do this for a reason. 
Thanks!