The SONOFF MINI DUO-L (MINI-ZB2GS-L) is a 2-gang Zigbee 3.0 smart switch designed for installations without a neutral wire. Thanks to its ultra-slim housing, it fits into most European (Ø60 mm) wall boxes, making it an ideal solution for retrofitting smart control in older properties. It supports two independent channels with a total rated load of up to 12 A, while maintaining manual control through traditional wall switches.
The Zigbee-based control provides reliable, local (cloud-free) operation and broad compatibility. With support for schedules, automations, and voice control, the switch easily integrates into daily routines. No flicker-prevention module is required for no-neutral installations, and its use is not recommended. Please note: the minimum load should be at least 3W.
About the SONOFF Brand
SONOFF is a key player in the DIY smart home community. Its product lineup—relays, switches, sensors, gateways (Wi-Fi and Zigbee)—offers excellent value for money, wide ecosystem compatibility, and easy installation for quick smart upgrades.
Key Product Features
- No-neutral installation: does not require a neutral wire, ideal for retrofitting in older electrical systems. Note: the connected load must be at least 3W.
- Two independent channels: control two separate circuits from one compact module, up to 12 A combined load.
- Ultra-compact size: fits behind most Ø60 mm EU wall boxes; easy to place behind a wall switch.
- Wide switch compatibility: works with both momentary (push-button) and rocker switches via S1/S2 inputs.
- Reliable Zigbee control: stable operation with local control even when the internet is down, via a compatible Zigbee hub.
Smart Home Protocols & Platform Compatibility
- Protocol: Zigbee 3.0
- Compatibility: Home Assistant (ZHA, Zigbee2MQTT), SmartThings, and other Zigbee 3.0 hubs (available features may vary by platform).
- Voice control: Alexa / Google Home (via supported Zigbee hub).
- Local control: manual switching via wall switch always works; Zigbee enables local control without cloud.
Smart Features
- On/Off control on two circuits: independent channel switching with state reporting.
- Schedules and scenes: timed actions and automations via your Zigbee hub’s app.
- Grouping: control multiple devices simultaneously (e.g., room-based lighting control).
- Power-on state: configurable behavior after power outage (depending on hub support).
Technical Specifications
- Product: SONOFF MINI DUO-L 2-Gang Zigbee Smart Switch
- Model: MINI-ZB2GS-L
- Channels: 2 × independent relay outputs
- Rated load: max. 12 A total (resistive load)
- Wiring: live wire only (L); no neutral wire required
- Terminal labels: L, L, L, L1, L2, S1, S2
- Dimensions: approx. 45 × 39.4 × 16.8 mm
- Weight: ~33 g
- Operating temperature: −10 to +40 °C
- Operating humidity: 5–95% RH, non-condensing
- Housing material: PC (polycarbonate), IP20 rated
- Zigbee role: end device (not a router)
- Compatible wall box: EU Ø60 mm recessed box
- Certifications: CE / FCC / RoHS (e.g., FCC ID: 2APN5-MINIZB2GSL)
- Note: external anti-flicker modules are not required and not recommended.
