Two-channel ZigBee wall switch Sonoff MINI-ZB2GSL-E — compact in-wall smart switch, two relay channels, no neutral required

Sonoff MINI-ZB2GSL-E is a compact two-channel ZigBee wall switch designed for in-wall installation where a neutral wire is not available. The unit provides two independent relay outputs that control lighting circuits or small electrical loads. Compatible with ZigBee-certified hubs and ecosystems, the switch supports remote control, local manual operation, timed schedules and scene activation to integrate with existing smart home setups. Its compact form factor fits standard wall boxes and retains mechanical wall switch function while adding wireless automation capability.

Advantages

The device combines two relay channels in a small housing that fits behind traditional wall switches, allowing smart control without rewiring for neutral. ZigBee connectivity ensures low-power, reliable mesh networking with compatible hubs and devices. The switch supports both local manual toggling and remote commands, enabling flexible control options. Installation is simplified by a design intended for standard European in-wall boxes and specifies no need for neutral, making it suitable for older installations.

Suitable for

• Retrofitting traditional light switches in homes without neutral wiring
• Controlling two independent lighting circuits from a single in-wall module
• Integration into ZigBee smart home systems for schedules and scenes
• Small-load control such as LED lighting, fans with compatible load characteristics

Key specifications

• Connectivity: ZigBee wireless protocol for mesh network integration
• Channels: Two independent relay outputs for separate loads
• Mounting: Designed for standard in-wall installation behind wall switches
• Power requirement: Operates without a neutral conductor (live-only wiring)
• Control modes: Local manual control and remote control via ZigBee hub or compatible app
• Functionality: Support for schedules, scenes and basic automation via hub
• Form factor: Compact module sized to fit into wall backboxes

How to use

Turn off power at the consumer unit before beginning installation. Mount the MINI-ZB2GSL-E inside the wall box and connect the live input and the two switched live outputs according to the wiring diagram provided by the manufacturer; no neutral connection is required. After restoring power, pair the module with a ZigBee hub using the hub’s device inclusion procedure. Once paired, assign each relay channel to a logical device or circuit in the hub or app, and configure names, timers or scenes as needed. Manual control remains available via the linked wall switch or physical buttons where applicable.

Usage recommendations

Verify the load type and total current of connected devices to ensure compatibility with the relay ratings. Use the switch with a compatible ZigBee hub from a supported ecosystem to access remote control, automation, and updates. If unsure about wiring, consult a qualified electrician for in-wall installation and adherence to local electrical codes.