SONOFF Zigbee Smart Light Switch, No Neutral, Hub Required, 2-Way Interruptor Inteligente, Voice Control with Alexa, Google Home and SmartThings, ZBMINIL2 4 Pack

These are not easy to figure out in terms of wiring. But, once you do, they tend to work. I was using these to add to light switched in a Church building with old wiring. They do not require a neutral, which is good. Figuring the wiring pattern was tough. In short it is: Line (to the light fixture) to Line in (1st port) (This would previously have bene on the "dumb" switch, on the screw that was not the ground (green screw) and was not the hot (you will need to determine which wire is hot (load) and which is the line Load (Hot) to Line in (2nd port) S1 - blank S2 - connects to the lightswitch (where the Line would have previously been on the light switch if it was previously set up as a traditional 2 way switch that has a Load (hot) and Line (connected to the light fixture). . The dumb switch needs a Load coming in to it (I used a wire nut to connect the load coming into the box to two other wires, one going to the Load In on the Zonoff, and one going to the top of the "dumb" switch. The other wire coming off the "dumb" switch is a Line wire that connects to the SONOFF switch instead of to the light. THEN when you turn it on, you need to do a factory reset, otherwise, the switch will only turn off about every 2-6 times you flip the manual "dumb" switch. Once I did a factory reset (held the button down for about 5 seconds) and repaired with Alexa (Alexa is my Zigbee gateway) everything worked. I would give this 4 stars, but no one reads 4 star reviews.

I am incredibly happy with this purchase. If you’re looking for a very small form factor to add smart capabilities to a device with no neutral wire, this is perfect. I was able to fit two of them into a single gang space with a dual rocker switch (very, very tight fit but… it worked). My specific installation was to solve two light switches from different circuits, no neutral on either, in a single gang box. There are many dual switch solutions available if both switches are on the same circuit, I have found none that work with separate circuits (and I have been looking for years). Another requirement I had was the switch needs to work with no smart connections as well - it needs to function as a dumb switch if the smart connectivity is down. My initial test worked perfectly. I used the wiring diagram from the Sonoff website for “Wiring with One External Switch Control” where the rocker switch connects S1 to S2 (not the option where S2 connects to L in). I am using Home Assistant and the Sonoff device was immediately detected from about 40 feet from the base (I often find I need to get close to the base for initial pairing) and the pairing process worked seamlessly. And the best part is, the rocker switch did exactly what I had hoped - it turned into a toggle switch (so whatever state the light is in, the switch will toggle it). I was concerned that the switch could turn into an override (e.g. if the switch is off, smart functions don’t work). I love this device and will likely use it to give smart capability to a few devices that I assumed would never be online.

The SONOFF ZBMINIL2 Extreme Zigbee Smart Light Switches (4-Pack) are an excellent choice for smart home users needing no-neutral wiring support, especially in older homes. I installed these behind traditional wall switches and connected them to my SmartThings hub, and they integrated quickly and without issue. Each switch is ultra-compact, making it easy to fit inside most standard switch boxes—even crowded ones. The fact that it doesn’t require a neutral wire is a major advantage in retrofit situations. Despite the small size, the build quality feels solid, and once connected, the switches respond instantly through Zigbee. They’re compatible with Alexa, Google Home, and SONOFF’s own ZBBridge, giving you flexibility depending on your ecosystem. The two-way switch support is handy for staircase or hallway lighting setups. One small limitation: As with most Zigbee devices, a compatible hub is required, so these aren’t for users looking for a direct-to-Wi-Fi setup. Overall, the SONOFF ZBMINIL2 Extreme is a smart, compact, and reliable solution for automating lights—especially in homes without neutral wiring. They work great, install easily, and expand any Zigbee smart home with minimal hassle.

It installs easily and works great and what a great value. It is smaller than I thought it would be and it easily fits inside the electrical box. The small caveat during installation on my Hubitat C9 hub running platform version 2.3.7.145 is during the Zigbee inclusion this device is so new the hub doesn't automatically pick up on this product device fingerprint to automatically load the correct device type. So after inclusion, you need to manually change the parameter device type to Generic Zigbee Switch. This will be fixed soon enough I am sure on an upcoming Hub update as I reported this to tech support. You can hear the relay click in device when you operate just like any smart outlet.

These are terrible. I had a four pack of ZBMINI before this and they worked great until this week when one failed (they fail ON by the way). This product ZBMINIL2 seemed to be the new version that was available when I ordered them. I had neutral available, but wired it per instructions. Wouldn't pair. Had to pair them on a bench with a cord and a lamp. Installed them and they appeared to work. Totally unreliable. Work only a small percentage of the time I try to control them from the smart hub (hubitat). They don't work at all with certain LED lights. I SWAPPED FIXTURES to try and make these work better. Still works less than 1/4 the time. One stopped connecting at all and appeared dead. The other three are installed but can't be used as a smart device. I did order the ZBMINIR2 to replace these, but wish I could get my money back.

Para que funcione ser requiere un Zigbee Hub, no funciona directamente con Wifi y la app de Sonoff. Se agrega el Hub a la app y luego, se agregan los subdispositivos como este ZBMINIL2

Molto comodi per modificare l'impianto elettrico esistente e creare un impianto di illuminazione domotica. Non necessita ti tirare fili di neutro per alimentare il dispositivo. Tramite un qualsiasi server zigbee si riesce ad aggiungere punti luce domotici con comandi con i più comuni assistenti digitali (Alexa, Google home). Come serve zigbee può essere utilizzato l'eco plus e Echo show e tutti i dispositivi Alexa che hanno Zigbee integrato.

I bought this about a year ago to convert the switch on the outside of my bathroom to a smart switch. I have no neutral wire, so this was obviously the no-neutral version! As you can see in the details, this is a really small device and fitted nicely behind the switch in a 35mm back box. The instructions are fairly clear and it's straightforward to wire up. Its a Zigbee device and once installed, it connected seamlessly with home assistant. I used ZHA on a sonoff 3.0 USB dongle plus. As it has no neutral, it doesn't work as a Zigbee router, so won't work to extend your Zigbee mesh. All in all a great product that has allowed me to convert a dumb switch to a smart one. In addition, the physical dumb switch remains functional which keeps the luddites in my family happy too!

Funcionan muy bien! Para los que dicen que no les funciona, deben comprar un bridge que se conecta a Wi-Fi (ver foto) para poderlos utilizar.

Great little switches