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

Enclosure design is excellent for getting access to innards to flash custom firmware (Tasmota in my case). Not glued together but held together with snaps and screws. Build quality is good. Did not use stock software to control with Alexa but flashed firmware for local control (device does not “phone home” to China. WiFi reception is strong with the ESP chip (stronger than many comparable devices). So far, very pleased with design and results. All together, I’ve purchased 8 of the S31 (both Lite and EM versions) and they all work (some other brands were somewhat hit or miss). Good QC.

Es excelente y cumple a la perfección con su función. Evita que me levante de la cama.

I went with Sonoff because I needed the 220V support. The S31 has been great and Sonoff has added many great features. Helping keep track of power consumption and being able to set schedules for a fish tank light. I also have one for heating the tractor block. Its great to turn on remotely when I know I will need to clear some snow later in the night.