SONOFF MINI DUO-L (MINI-ZB2GS-L) is a two-member (2-gang) Zigbee 3.0 smart switch that can be installed without a neutral conductor. Due to its ultra-thin housing, it fits into most European (Ø60 mm) junction boxes, making it ideal for retrofitting older properties. It manages two independent channels, with a maximum rated load capacity of 12 A in total, while maintaining the usual manual control with a wall switch.

Zigbee-based control offers stable, local (cloud-independent) operation and wide compatibility. It can be easily adapted to everyday use with schedules, automations and voice control. The construction without a neutral conductor does not require an anti-flicker module and its use is not recommended. In accordance with this, the minimum consumer must have a power of at least 3W.

Main product features

- No-neutral installation: does not require a neutral conductor, ideal for retrofitting older installations. Attention! The consumer is at least 3w
- Two independent channels: control of 2 separate circuits from a single compact module, a total of max. 12 With the load.
- Ultra-compact size: fits into most 60 mm EU boxes; easy placement behind the wall switch.
- Wide switch compatibility: works with both push-button (momentary) and rocker switches (S1/S2).
- Stable Zigbee control: reliable, local control that can be used even in the event of an internet outage with a compatible Zigbee hub.

Smart home protocols and platform compatibility

- Protocol: Zigbee 3.0.
- Compatibility: Home Assistant (ZHA, Zigbee2MQTT), SmartThings and other Zigbee 3.0 gateways (the range of functions may differ per hub).
- Voice control: Alexa / Google Home (via the used Zigbee bridge).
- Local operation: manual control is always maintained with the wall switch; It can also be controlled via Zigbee without the cloud.

Smart functions

- On/Off control on two circuits: independent channels with status query.
- Schedules and scenes: timed on/off and automation from the Zigbee hub application.
- Grouping: coordinated control of several devices (e.g. room-level lighting).
- Power-on state: behavior after a power failure can be set (depending on the hub).

Technical specifications

- Product: SONOFF MINI DUO-L 2-Gang Zigbee Smart Switch
- Model: MINI-ZB2GS-L
- Channels: 2 × independent relays
- Nominal load: total max. 12 A (resistive load)
- Connection: only phase (L); neutral conductor is not required
- Terminals: L, L, L, L1, L2, S1, S2
- Dimensions: approx. 45 x 39.4 x 16.8 mm
- Weight: ~33 g
- Operating temperature: −10…+40 °C
- Operating humidity: 5–95% RH, non-condensing
- Housing material: PC (polycarbonate), IP20
- Zigbee role: end device, does not work as a router
- Compatible box: EU Ø60 mm recessed box
- Certificates: CE / FCC / RoHS (e.g. FCC ID: 2APN5-MINIZB2GSL)
- Note: an external anti-flicker module is not required, its use is not recommended.