SONOFF MINI DUO-L – 2-Gang Zigbee Smart Switch No Neutral Required

SONOFF MINI DUO-L – 2-Gang Zigbee Smart Switch No Neutral Required

A miniature, in-wall 2-channel relay module based on the Zigbee 3.0 protocol. Designed specifically for installations where there is no neutral wire (N) in the switch box. It allows control of two lighting circuits, supports 2-way control (staircase), and works with various types of wall switches.

Key Features:

• No Neutral Wire Required – ideal for retrofitting older installations
• Zigbee 3.0 Communication – stable operation and fast response (EFR32MG22 MCU)
• 2-Channel Control – independent control of two lighting circuits
• High Load Capacity: 8A per channel, up to 12A total
• Stable operation from 3W – typically does not require an additional anti-flicker module (bypass)
• Compact Size (45x39.4x16.8mm) – fits into standard 60mm mounting boxes
• Supports momentary (bell) and rocker (bistable) switches
• Detach Relay Function – separate the switch button from the relay (for smart bulbs)
• Matter Ecosystem Support (requires a bridge, e.g., Sonoff Zigbee Bridge Ultra)
• Compatibility with Zigbee gateways, ZHA, Zigbee2MQTT

Solution for Installations Without Neutral Wire

MINI DUO-L is the perfect solution for modernizing lighting in buildings where only the live wire (L) is present in the switch box. No wall chiseling or rewiring required.

Small Size, Double Control

Despite its small dimensions, the module offers control over two independent channels. This allows you to operate a two-zone chandelier or two separate light points using a single device hidden in the box.

Support for Various Switch Types

The module is highly flexible and works with both classic rocker switches (ON/OFF) and momentary buttons (bell push). Staircase (2-way) configuration is also possible.

"Detach Relay" Mode – Ideal for Smart Bulbs

This function allows you to separate the physical switch from the built-in relay. As a result, even if you turn off the light with the button, the smart bulb remains powered and accessible in the app, while the button sends a logic signal to trigger a scene.

Compatible with Multiple Zigbee Hubs

Integration with Third-Party Platforms
Based on the standard Zigbee 3.0 protocol, the device seamlessly integrates with third-party open-source platforms, making it the perfect solution for your home automation needs.

Technical Specifications:

Dimensions of MINI-ZB2GS-L Relay

Wiring Diagram for MINI-ZB2GS-L

Package Contents

Documentation: https://help.sonoff.tech/docs/MINI-ZB2GS-L