Sonoff MINI-DIM Matter over Wi-Fi in-wall smart dimmer module

The wireless link or network the device uses. Wi-Fi connects straight to the router; Zigbee, Thread and Bluetooth Mesh work through a hub or gateway.

Whether the device needs a separate hub, gateway or coordinator to work in a smart home. If so, it is sold separately unless stated otherwise.

Whether the device supports the Matter standard, directly or through a bridge. Matter lets you add it to Apple Home, Google Home, Alexa and Home Assistant.

How the device connects to Home Assistant: a built-in integration, a Zigbee coordinator, Matter or the maker’s cloud integration.

Whether the device keeps working over the local network or through a hub when the internet is down. Cloud features (remote access, voice assistants) need the internet.

The maker’s app used to set up and control the device.

The microcontroller or radio module inside, per the maker (for example ESP32). For firmware such as WLED and ESPHome it determines available features and whether the device can be re-flashed.

Total LED lamp wattage per channel that the maker allows. Add up the watts of all lamps on that circuit and compare; for dimmers only dimmable lamps count. If the maker gives the figure in VA or as a total for all channels, the note says so.

Power of incandescent lamps, 230 V halogen lamps, heaters and other resistive loads per channel. For LEDs, motors and power supplies the permitted power is lower — see the separate figures.

The highest current one channel handles with a resistive load. For LED lamps check the separate “LED load” figure, which is usually noticeably lower.

The supply voltage (and current, if stated) as the maker gives it. It must match your mains or adapter.

Whether the wall box needs a neutral wire. Older wiring often brings only the live wire to the switch; then pick a model that works without N.

How and where it is installed: in a wall box, on a wall or ceiling, on a DIN rail, on a table or in a socket.

The device’s size in millimetres as the maker states it. Check that it fits the wall box, niche or shelf.

The device’s weight without packaging, per the maker.

Standards and certifications the maker lists for this model (for example CE, RoHS, Zigbee 3.0, Matter).

How the dimmer cuts the mains sine wave. Trailing-edge dimming usually runs dimmable LED lamps more quietly and with less flicker; leading-edge is designed for incandescent lamps and conventional transformers. Universal models pick the mode themselves or let you switch it in settings.

Whether you can set the lowest and highest brightness to suit your lamps. This helps remove flicker or buzzing of LED lamps at low brightness and avoids the dead part of the scale where the lamp no longer lights.

Whether you can keep an ordinary wall switch or push button and wire it to the module, so the light works from both the switch and the app. Shows which switch types are supported; on dimmers a momentary button usually also adjusts brightness when held.

What state the load returns to when power comes back after an outage: on, off, as it was before, or the opposite. The options you can choose in settings are listed.

The module cuts or reduces the load by itself if it gets too hot inside the box. A dimmer in a cramped wall box heats up more than an ordinary relay.

How many separate loads (light circuits, appliances, motors) the device controls independently.

Whether the switch shows in the app how much the connected appliance uses: live power and accumulated kWh.

Whether a remote for phone-free control is in the box. The remote’s link type is shown under “Connection protocol”; compatible remotes sold separately are listed by the manufacturer.

The warranty period the maker states. Confirm warranty terms in Moldova with the seller.

The air temperature range the device is rated for. The lower limit matters outdoors, on balconies and in unheated rooms.

The rated relative humidity range, non-condensing.

The housing colour of this model. Other colours in the same series are separate products.