Switch is vis wifi integrated to your network. Works well in homekit. It either turns ON or OFF.
This product isn't worth the money. The setup failed 3 times before it managed to connect correctly. Once it was set up it worked - but sometimes it disconnects from the network and I can't connect to it even though it's fairly close to the wifi-router. Apple Homekit support seems random at best. I'd suggest buying a similar unit from a more known brand with official support for Apple Homekit.