Sonoff MINI-DIM Matter Over Wi-Fi Dimmer Switch – dimmer module with power meter, Matter, Wi-Fi

The SONOFF MINI-DIM is an ultra-compact, in-wall smart light dimmer that brings Matter over Wi-Fi connectivity to your existing lighting circuits. Designed to fit behind a standard wall switch, it enables smart dimming control for most dimmable 230V light sources (LEDs, incandescent, halogen, dimmable electronic transformers) – allowing easy integration of traditional lighting into a unified smart home system.

Part of the SONOFF Mini Extreme series, the module is just a few centimeters in size and retains manual control via physical switches (supports both push-button and toggle switches). Built-in auto and manual calibration enables precise percentage-based dimming. Safety features like overheat protection and load detection enhance compatibility and reliability.

Thanks to Matter support, the MINI-DIM integrates seamlessly with major smart home platforms such as Apple Home, Google Home, Amazon Alexa, SmartThings, and Home Assistant (via Matter). You can set schedules, scenes, and automations, with a simple Plug & Play pairing experience. A neutral wire is required, and the module is suitable for single-phase 220–240V~ AC networks only.

About the SONOFF Brand

SONOFF (ITEAD) is a key player in the DIY smart home space, offering a wide range of Wi-Fi and Zigbee-based relays, dimmers, sensors, and switches. Their products are known for affordability, cross-platform compatibility, and support for open smart home ecosystems – including eWeLink, Apple Home, Google Home, Amazon Alexa, SmartThings, and Home Assistant.

Key Features

• Matter over Wi-Fi: Cross-platform, brand-agnostic integration (Apple Home, Google Home, Alexa, SmartThings, Home Assistant).
• Ultra-compact installation: Mini Extreme form factor – fits easily behind wall switches.
• Wide light compatibility: Works with dimmable LEDs, incandescent, halogen, and dimmable electronic transformers.
• Smooth dimming control: Automatic and manual range calibration for precise brightness adjustments.
• Built-in safety: Overheat protection and power detection enhance safety and performance.
• Flexible switch support: Works with push-button (momentary) and toggle wall switches.

Smart Home Protocols & Platform Compatibility

• Protocol: Matter over Wi-Fi (IEEE 802.11 b/g/n, 2.4 GHz)
• Compatible ecosystems: Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, Home Assistant (Matter)
• eWeLink support: Device can also be paired and configured via the eWeLink app
• Local control: Works with wall switch without internet; designed for local and Matter-first operation

Smart Features

• Remote on/off and dimming: Control via app, voice, or automations
• Timers and delays: Schedule lights or set delay-based turn-off
• Auto/manual calibration: Set precise brightness levels via app or button
• Scenes: Coordinate multiple devices for routines like evening or movie mode

Technical Specifications

• Product / Series: SONOFF MINI-DIM / Mini Extreme
• Type: Matter over Wi-Fi Smart Dimmer (in-wall module)
• MCU: ESP32-C3
• Power / Network: 220–240 V~ 50 Hz (single-phase); neutral wire required
• Rated load: 400 W (resistive); LED: 200 VA
• Supported lights: Dimmable LED, incandescent, halogen, dimmable electronic transformers
• Wireless connectivity: Wi-Fi 2.4 GHz (IEEE 802.11 b/g/n); Matter supported
• External switch input: S1/S2 – supports push-button (momentary) and toggle switches
• Safety features: Overheat protection; power/load detection
• Calibration: Automatic / manual (via button or app)
• Recommended wire: 18–16 AWG solid or stranded copper
• Housing / Color: PC; white
• Dimensions / Weight: 45 × 39.4 × 16.8 mm; 24.5 g
• Operating environment: Indoor; −10…+40 °C; 5–95% RH (non-condensing)
• Certifications: CE / RoHS
• Note: For single-phase 220–240 V~ AC only; installation must be done by a qualified electrician

Additional information