SONOFF Wi-Fi Smart Switch Matter Smart Switch 10A 2400W, Neutral and Live Wires Required, Remote Control Smart Scheduled Light Switch Works With Alexa/Google Home, MINIR4M

Very impressed with how easy to install it is, the size is perfect, very small profile and connected via matter to my Apple TV 4K within a couple of minutes. I’ve used it to control the on/off function on some led lights I’ve installed in a cabinet, wiring was fused switched spur to junction box, flex cable from junction box to this controller in, then flex cable to transformer which is powering 4 led strips. There’s a button on the controller that acts as a switch, but could also wire in a switch too, I’ve chosen not too as can switch on and off from the fused spur. Works perfectly with Apple home kit via the Apple TV acting as a matter hub and lights can now be set up on automation via the Apple home kit app.

I've had these for over a year now to make my dumb bathroom extractor fans smarter. The bathroom fans are linked to the light switch when operated and humidity controlled thereafter, but I changed the bathroom lights with hue lamps and the light switch had to stay on for the hue lights to work which meant that the extractor fan would be on 24/7. I wired these in to the isolator for the extractor fans and had them switch the extractor fans on whenever the lights were on via Home Assistant. Was very easy to set up and was compatible via Home Assistant. the unit is very small which aids in its installation into a back box and the terminals are all on one side which makes installation a breeze. They were reasonably priced so go two of them and are well made for the job. It connects via wifi so have to use the app to set them up, but once setup, was easy to get working with the hue lights. All in all took about an hour to get fully functioning on both bathrooms. Been running over a year now with no issues other than having to set them up again when changing hardware for the Home Assistant earlier this year, almost forgot they were there in the first place, that's how good they operate.

Amazing piece of kit! It’s tiny and fits nicely in the back of the switch box spur to control kitchen cabinet lights, which are now part of my Apple HomeKit system. An added bonus is that the lights being controlled by the Sonoff Mini 4RM can also be controlled using a push button switch that I fitted into a space on the switch plate, see pic. (The switch on the spur box is being used to power the Sonoff). I intend to expand the use of these mini Sonoff’s around the house; especially for ceiling spots. In this case, like most houses I haven’t got a neutral at the light switch, but it looks simple to install a mini Sonoff at the ‘first light’ in the ceiling, and connect ‘S2’ to one of the live wires going back to the switch. As before, in this scenario HomeKit will control the lights, but with the existing physical switch being available as backup should anything go wrong. edit: Sonoff likes to phone home often, even when being controlled locally within the HomeKit network. I’ve now blocked all outflows. It’d be nice if Sonoff knew that it was being controlled locally and provide the option to switch off internet flows.

Easy to wire. Nice and small, fits inside my standard size back box with blanking plate. Would not fit in a small lighting back box with a switch plate attached. Setup and connection worked first time with no faffing about. Maybe best first smart home setup I've seen.

If you need a single switched supply for a light or other wired-in device and have access to the neutral wire this is an excellent choice and will integrate with a Matter-based control system via WiFi. You can also use the eWeLink app via its local (fully documented!) JSON web interface or via an eWeLink cloud account. (I would recommend installing the eWeLink app to check for firmware upgrades from time to time if nothing else.) Basic on/off Home Assistant support is provided via the built-in Matter support and/or more complete control via the HACS Sonoff integration. I bought my first one to control my existing kitchen unit down-lights as these were wired in by the previous resident to the ring main and so the neutral coonection is available in the patress box. The unit has a status LED which reports WiFi state during setup and switch state thereafter. The LED can be disabled via the eWeLink app or HACS Sonoff integration once no longer required. The unit also has a momentary contact switch to test the relay and to factory reset if required. The external switch contacts support mains-rated momentary patress switches (e.g. https://www.amazon.co.uk/dp/B07F7ZQXSL) or can be used with the existing rocker or a multi-switch stairwell setup. Choose momentary or open/close mode via the app. An interesting bonus feature allows the switch input to be separated from the relay control. For DIY smart-homers this allows the option to use the switch for something other than the light/device power and/or to manage when the switch is functional based upon other criteria. I'm not using this yet but it's a nice feature to include in the firmware. As others have mentioned, despite the very compact design, with many modern UK sunken patress boxes, you may need a patress spacer to make room. The only missing feature, and I'm niggling here, is energy monitoring

Please with how small these switches are and they seem to work ok.

Device keeps going out of connection and becoming unresponsive and no way to put them in pairing mode without resetting them. I have received a full refund for the item and a great customer support from Rita who has offered to update the firmware if I can open the light junction box again and try to reset the device. Since this will need electrician to do this, I'll contact SonOff customer service again when connection is dropped and have to get electrician onsite again. I have reviewed my rating because of the great customer service.

Now I just have to find a suitable ceiling rose to cover it.

It was very simple and easy to setup. I had wire & switch from my desk lamp and I reused them for the testing. The instructions for wiring were clear. Just needed to make sure that the phase & neutral was correct (use a tester). Once powered up, I scanned the code using my iPhone and within 2 minutes, it was ready for use.