SONOFF MINI-ZBDIM is an ultra-compact Zigbee 3.0 dimmer (trailing-edge) that can be built into an assembly box, with which existing lighting circuits can be "smartened" quickly and cleanly. The dimmer offers fine percentage brightness adjustment and soft start/stop, while also strengthening the network as a Zigbee router, increasing the stability and range of the entire system.

The module in the Mini Extreme format fits comfortably behind the wall switch and retains the usual manual control: it works with push-button (momentary) and rocker switches, the mode can be changed on the device. Advanced settings such as minimum brightness threshold, transition times and calibration help you avoid flickering and set the usable dimming range for different dimmable LEDs, bulbs or electronic transformers.

Thanks to its Zigbee-based control, MINI-ZBDIM can also be integrated into brand-independent smart homes: it can also be used with Home Assistant (ZHA / Zigbee2MQTT), SONOFF gateways (e.g. NSPanel Pro, iHost) and other Zigbee 3.0 hubs. Thus, remote on/off and brightness adjustment, timings, scenes and automation are all available - even with voice control, via the chosen platform.

Main product features

- Ultra-compact installation: Mini Extreme size fits in the box behind the wall switch, pure retrofit.
- Professional trailing-edge dimming: fine, flicker-free brightness adjustment for dimmable 230 V light sources.
- Zigbee 3.0 router: signal repeater function for a more stable, longer-range mesh network.
- Flexible external switch: push button (momentary) and rocker switch support, mode selection on the module.
- Fine-tuning: minimum brightness threshold, transition times, calibration and smooth brightness curve.

Smart home protocols and platform compatibility

- Protocol: Zigbee 3.0.
- Compatibility: Home Assistant (ZHA, Zigbee2MQTT), SONOFF Zigbee gateways/NSPanel Pro/iHost, as well as other Zigbee 3.0 hubs (the range of functions may differ from hub to hub).
- Voice control: Alexa / Google Home / SmartThings via the used Zigbee bridge.
- Local control: works even without internet with the external wall switch.

Smart functions

- Remote on/off and dimming: support for status query, scenes and automations.
- Calibration & min. brightness: reduce flicker and set the usable range.
- Transition times: uniform brightness change (transition) can be set.
- Power-on behavior: state after power failure can be determined (e.g. last state).
- Grouping: coordinated control of several light circuits via Zigbee.

Technical specifications

- Product / name: SONOFF MINI-ZBDIM (MINI DIM Zigbee)
- Product series: MINI Extreme series
- Type: Zigbee dimmer switch (trailing-edge) / Zigbee Dimmer Switch
- Model: MINI-ZBDIM
- MCU / radio: EFR32MG21; Zigbee 3.0 (IEEE 802.15.4)
- Power supply / network: 220–240 V~ 50 Hz
- Nominal load capacity: 400 W max (resistive load); LED: 200 VA
- Zigbee role: router/signal repeater
- External switch input: S1/S2 momentary (push button) and rocker switch support
- Available settings: minimum brightness threshold, transition time, calibration, power-on state
- Wire size (recommended): 18-16 AWG solid/stranded copper (SOL/STR)
- Installation / application: fitting box behind the wall switch; indoor
- Dimensions: 45 × 39.4 × 16.8 mm
- Weight (net): 24.5 g
- Color / housing material: white / PC (plastic)
- Operating temperature: −10…+40 °C
- Operating humidity: 5–95% RH, non-condensing
- Certificates: CE / RoHS