No Neutral Wire Required, SONOFF ZBMINIL2 Zigbee Smart Light Switches (2 Way), Smart Switch Works with Alexa, SmartThings Hub, Google Home&SONOFF ZBBridge-P, ZigBee Hub Required (2 Pack)

Great little switches

Works perfectly, I like the smaller form factor compared to the last generation Linked to my Hue hub

Es muy buen producto, muy pequeño y cabe muy bien en el hueco del apagador o contacto, es importante saber que manejan un protocolo de comunicación diferente por lo que no es detectado por el WiFi, se debe comprar un aparato adicional para que lo reconozca y pueda funcionar, busquen un bridge Zigbee o cuálquier aparato que permita el control de estos dispositivos con la tecnología Zigbee de otra forma no los podrán usar.

Make sure you pick the correct one with or without neutral, but once you have that these are amazing and work perfectly in home assistant. Best part is the wall switch stays fully functional and the smart side knows the status for turning on and off.

I used this to add smart control to a traditional wall switch (no neutral wire) controlling ceiling lights. Setup was straightforward once wired correctly: L IN from the breaker, L OUT to the light fixture, and S1/S2 connected to the existing wall switch (which now works as a momentary trigger instead of directly cutting power). Pairing with Zigbee2MQTT/Home Assistant was quick and stable — great signal strength once connected. Highly recommend having a nearby Zigbee router device (like a smart plug) if your setup is far from your coordinator, as it noticeably improves connection reliability for these no-neutral relays. One tip for others: use proper wire ferrules when connecting to the small screw terminals — the terminals are compact and ferrules make for a much more secure connection than bare stranded wire. Overall, does exactly what it's supposed to do. Compact size fits easily in a standard wall box.

With older homes with no neutral, these are the ticket! Simple to install, fit great in J-boxes. They take up much less space than an all-in-one smart switch. Home Assistant made pairing a breeze. When controlling through the HA dashboard, they are instant on or off, unlike Zwave. They are not dimmers, they are ON or OFF. No flicker when used with LED lights. The use of the existing light switch has been nice. You will have to make jumper wires to connect the physical light switch to the Sonoff controller. Since installation, I've not had any drop off the network and disappear. These will be my go-to in future installations.

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.