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

A plug requires to use my phone number? How safe they can guard my info？!

This is a lite unit, and does not have the full functionality of the s31 switch, but has most of the price.

Great for high amperage devices. I wanted a smart plug that could handle 15 amps to control an electric heater with Alexa. This fit the bill.

I have no issue with Sonoff. I have been more satisfied with Sonoff than with the Amazon Smart Pulgs that I own. First: this package delivery was on my porch instead of Amazon Key inside the safety of the garage when I was out of town. Second: Upon opening the Amazon package, I found the Sonoff box had been opened (see photograph) and apparently the Sonoff device had been compromised. I returned this Sonoff smart plug. 5 Stars for Sonoff, 0 for Amazon for the delivery and apparently used and compromised product.

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

easy connect ! easy to use app!

You have to download the welink app. Not a fan of apps bc I use home assistant but it is what it is. When you set it up, look at the top for wifi, not bluetooth. Save you a few minutes of being frustrated. Works fine with Alexa, google, and smartthings. Easy integration.

Moving to a fully local control system and these fit right in. I flashed them with ESP-Home and dropped them into Home Assistant with no issues.

Use caution when ordering these. I didn’t realize there were two versions of the S40 Lite, Zigbee and Wi-Fi. I bought this version by mistake, and while they’re returnable, I don’t have a UPS store near me and Amazon won’t provide a free return label for a pickup. The Wi-Fi version does not seem to be as well supported in home assistant, the add on provided for it only seems to provide a Lovelace card and not a proper device, so as far as I can tell so far it can’t be used in automations. The s40 version also can’t be flashed with alternate firmware, so it’s usability with home assistant is limited.

It is very easy to use and when you add it to the app it automatically adds to alexa too