I have bought a Tuya Zigbee 3.0 switch a few months ago from China and it finally arrived today. Being inpatient as i am, of course i had to install it tonight. On the device it self, it states both zigbee and wifi for some reason and it has no button for pairing. I can verify that the device is indeed zigbee and bellow you can find both a link to buy and a couple of pictures from the whole process.
One thing to note is that this is not metering switch but it does run locally using the zigbee switch native dht from Samsung.
€ 6,05 52%OFF | Tuya ZigBee 3.0 Wifi Switch Module With Smart Light Switch Module Smart Life/Tuya Remote Control Work With Alexa Google Home
Feel free to ask me anything.