SONOFF ZBMINI Extreme

Quick verdict

The ZBMINI Extreme lives up to its name — it's extremely small and doesn't need a neutral wire. That combination makes it the go-to relay for older homes with cramped switch boxes. It joins your Zigbee mesh as a router, runs fully local through zigbee2mqtt or ZHA, and costs next to nothing. If your switch box is tight and neutral-less, this is your answer.

Standout: No neutral wire required in an ultra-compact Zigbee relay — the smallest no-neutral option available.

Last checked: 2026-03-25

Compatibility snapshot

Why it stands out

• no neutral wire required — works in older homes with two-wire switch boxes
• extremely small form factor — fits in the tightest switch boxes
• Zigbee mesh router — strengthens your Zigbee network

Reasons to hesitate

• requires a Zigbee coordinator
• on/off only — no dimming capability
• no direct voice assistant control without bridging through Home Assistant

Best for

• older homes without neutral wires that need smart relays
• cramped switch boxes where standard relays won't fit

Avoid if

• you have no Zigbee coordinator
• you need dimming functionality

Privacy and local-control notes

Pure Zigbee device. No cloud, no Wi-Fi, no data leaves your local network. Requires a Zigbee coordinator.

Home Assistant support: supported · integration path: zigbee2mqtt / ZHA.

Buying reality check

Price notes: Very affordable. The no-neutral capability at this price is exceptional value.

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