SONOFFM5-2C-80W SwitchMan 2 Gang Smart Wall Switch (Matter), Remote/Voice Control, Share Control, Smart Scene, Countdown Timing, 2.4GHz Wifi, 2200W Max Power, Works with Alexa & Google Home, White

I used this to replace a basic 2-gang / double light switch in one of my rooms. Overall, it has a few odd quirks, but they are pretty minor, so I'm quite happy with the device. One of the great things about a smart switches is they can control an electrical circuit and/or smart device(s). The drawback is that they need a neutral wire... some don't, thanks to some trickery, but that approach has its own drawbacks, especially with small electrical loads like LED lighting, hence why they aren't popular. However, if you are replacing a switch with at least two buttons (like I did) and at least one of the lights on that wire is a smart one, there is a good workaround - you can disconnect that smart device wire from the supply box above the switch and make the device be constantly powered. That frees up its wire going from the distribution box to the switch, now you can use it as neutral. Then, you can make the switch tell that smart light to turn on/off. The extra benefit is that you can always remotely turn it on/off through your phone, because when the light switch is off the smart light isn't powered down completely. If the smart light also acts as a zigbee router - now you also get the benefit of it being constantly powered on and helping the mesh network.Pros:+ It can be controlled through the LAN, doesn't required internet/cloud access. This is one of my favourite features on smart devices, because I don't lose control if the manufacturer's cloud or my internet is down.+ Loads of helpful features in the eWeLink app - there are the basics, like timers for automatic on/off switching, but you can even toggle the same circuit from different switches, e.g. at two ends of a corridor. Helpful if you want that functionality, but don't want to run an extra wire.+ Can be controled from Home Assistant, but there doesn't appear to be an official Sonoff or eWeLink integration. Instead I used a Sonoff custom integration from HACS, it is quite easy to setup.Cons:- It is significantly smaller than traditional / basic switches - if you are replacing an old switch, and it was hiding some imperfect paintjob around its box, or you had to replace the box behind the switch and the wall got a bit damaged around it, all of that is going to be visible now. The switch is even slightly narrower than the standard round yellow boxes for plasterboard, but it does cover the older style black boxes where the switch is secured using screw-clamps.- You can control the brightness of the LED(s) behind the button(s), but not individually (one slider for all of them) and you can't assign colours to different states, which doesn't make sense for a smart switch. For example, if one of the buttons isn't controlling a physical circuit, it has a red colour. While if the button is connected to a circuit, the colour is blue. Makes sense if this wasn't a smart switch, but my button is controlling my light, simply it tells it to turn off itself rather than cutting the power to it.- The relay inside the switch is quiet, but definitely audible.

Function perfectly with home assistant. The issues are the depth of them and the width of them, they could do with a flange plate around the as they are not as wide as a standard switch plate and possibly you could gain a few mm in depth with a flange plate, I'm not sure if you can get one for them. I have a 25mm patric and it was very tight with the cables entering in 2 different locations.

Positiv:Der SONOFF Smart WLAN Wandschalter bietet eine beeindruckende Kombination aus Funktionalität und modernem Design. Mit der Unterstützung von Matter, Alexa und Google Home ermöglicht er eine nahtlose Integration in bestehende Smart Home Systeme. Die Timing- und Sprachsteuerungsfunktionen sind besonders praktisch und erleichtern die Steuerung der Beleuchtung erheblich. Der Schalter ist einfach zu bedienen und die Installation ist unkompliziert, vorausgesetzt ein Neutralleiter ist vorhanden.Negativ:Ein kleiner Nachteil ist, dass der Schalter einen Neutralleiter benötigt, was in älteren Häusern möglicherweise nicht vorhanden ist. Dies könnte die Installation für einige Nutzer erschweren.Fazit:Insgesamt ist der SONOFF Smart WLAN Wandschalter eine ausgezeichnete Wahl für alle, die ihre Beleuchtung smart und effizient steuern möchten. Trotz der kleinen Einschränkung bezüglich des Neutralleiters überwiegen die positiven Eigenschaften deutlich. Die Kompatibilität mit verschiedenen Smart Home Plattformen und die benutzerfreundlichen Funktionen machen diesen Schalter zu einer empfehlenswerten Ergänzung für jedes moderne Zuhause.