“The Shelly 1 Mini is a neat little Mains Relay, controllable both over 2.4GHz Wifi and/or over BLE. An example showing control over BLE from an ESP32 is:
https://www.instructables.com/Controlling-Shelly-Home-Automation-Relays-From-an-/”
“easy to set up, works very well with Home Assistant. I was surprised that it hosted a webserver in itself. Could be interesting to explore as a standalone option.”
“Very easy to install and configure. Connected to the WiFi straight away. The control through the app is very flexible, with scripts it’s extremely flexible. The size is excellent, together with the build quality.”