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

I got my first Sonoff switch a few years ago. Had to wire it up myself, but it worked well. These S40s are terrific. Just plug 'em in. The connection is established with Bluetooth, and from then on they're connected to the internet through the local router. Using eWeLink, you can turn things on and off in your house from anywhere in the world. Several years ago, it was disappointing that eWeLink was a phone-only application. But that's fixed. You can now have the app on your computer to control these guys as well. The S40s are dead-nuts simple to use. Once programmed, you can unplug them, and plug them in anywhere else in the house without changing anything. It's nice that they're great, but they're also available at bargain prices. Cheap thrill. Note that eWeLink can be connected to Google Home, so you can run all of these devices through Google Home.VERY IMPORTANT: You can get cheap knock-offs of these, but they DO NOT WORK with eWeLink, and you need to download a separate app to connect to Google Home. So once you get started using Sonoffs, don't try to expand using these knock-offs. Stay with Sonoff.

I tend to purchase several of these units a year. Ill buy some for christmas lights and then after christmas they end up getting utilized somewhere else in the house, then christmas comes back around and i have to buy more to replace them. Works well with my home assistant setup. I have around 6 some going back several years and they all still work great!

Easily connects to Wi-Fi with downloaded ap.

These work great for flashing Tasmota, but you need to be familiar with the flashing process. Here are some tips:- Highly recommend those rubberized "Mini probe test leads" to clip between the board and FTDI flasher to avoid the annoyance of doing a hard solder just to flash the device.- Any basic FTDI-type USB flasher will work, just make sure it can provide 3.3v (make sure to set it to 3.3v before connecting!). There's a cheap FT232RL $5 one on here--make sure you have any requisite USB connector for it (mine needed the uncommon USB mini adapter).- Opening the Sonoff isn't terrible difficult, use a spudger or mini flathead screwdriver to pop off the grey cap on the side facing the plug. Remove the white sliding things, and be gentle doing the 3 screws since they strip easily.- Grab the latest tasmota.bin from Github. There are multiple tools that can flash it, I used ESPHome Flasher.- Flashing: 1. Connect GND, RX, and TX probes between the Sonoff and your FT device, but don't connect VCC just yet. GND goes to GND, but RX goes to TX and vice versa! 2. Plug in FT device to computer. 3. HOLD DOWN button on the Sonoff device and connect VCC--if your FT device has LEDs they should flash but Sonoff should not. 4. Refresh ESPHome Flasher and it should detect your device on the USB port. Load the firmware .bin and flash it. 5. If successful, put the Sonoff back in its housing and plug it into an outlet to test. Use your phone to connect to the temporary AP so you can give it your wifi details. That's it! Future updates can be done OTA.

Works great

Sonoff has a reputation for being very friendly to developers and home-automation enthusiasts. It is a very common practice to flash alternate hardware on these. Of course, doing so voids any sort of warranty and eliminates the possibility of sending them back, so it's always done at the purchaser's own risk. That being said, I've had no problem with other Sonoff products. However, these are a disaster. I destroyed one just trying to get the screws out. They are in far tighter than could ever be necessary. Another one I destroyed by trying to solder little wires onto the pads for programming. One of the pads came off.All of these might still work with the original firmware, but they are completely useless to me that way. They require Internet connectivity to work, so what happens when my crappy satellite internet fails? I have to crawl around under tables and behind furniture to find the little buttons that I have to press just to turn things on or off.This has been a major disappointment for me. I thought Sonoff treated their customers better than this.

Satisfecho con la compra, vendedor recomendable

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.

Lamentablemente no hay algo negativo que escribir y poner solo cosas positivas pensaran que estoy exagerando pero son prácticos funcionales y eficientes me gusta que miden los watts de consumo los amperios y kwh se controlan por voz y tienen protección ante picos de voltaje o bajo voltaje y en resumen la mejor compra de sonoff en domotica

They work perfectly with my setup, I've never actually run the 'stock' firmware/software so can't comment on that, but the hardware is well made.These are easy to open up, re-close, and still use ESP8266 so can be flashed with custom firmware unlike a lot of the newer plugs.

Setup was painless, integrated into Google home although base app would have done everything I needed.

Muy bueno recomendable

Has been working well. Hoping it doesn't fail prematurely