SONOFF S40 Lite 15A WiFi Smart Plug ETL Certified, Smart Socket Outlet Timer Switch, Compatible with Alexa & Google Home Assistant, IFTTT Supporting, No Hub Required -A Certified for Humans Device

This plug is very disappointing

Works well to turn on and off any AC powered plug-in device. Integrates easily through eWeLink and Siri.

I purchased this device because it was capable of running custom firmware like Tasmota and ESPHome (which do not require a cloud connection). The installation process was fairly easy. The gray side piece can pop off, and then two edge pieces slide out. After that just remove a few screws and it opens. I was a little disappointed that the serial connection points were not holes like some of the other Sonoff products I have used. However, I managed to apply the firmware without soldering by taping together a row of jumper wires and pressing them firmly against the contact points while the initial flash process ran. After that, I simply put it back together and its working perfectly with the custom firmware.