I have these - they are fantastic and work on normal wall light switches. I rent so I can't install smart switch panels, so these stick on. They're like $20 for

I have these - they are fantastic and work on normal wall light switches. I rent so I can't install smart switch panels, so these stick on. They're like $20 for the hub and $10 for each switch. "Hey google turn off the lights". I don't know what zigbee is, but the little mothership hub is on my wifi.