Fibaro
Fibaro Dimmer 2 (FGD-212)
- Native integration
- Local control
- Z-Wave
Prices verified September 2026
See more relays & dimmer modules picks on our Amazon storefront →Our verdict
The veteran premium pick: a Z-Wave (EU 868MHz) dimmer that auto-calibrates to the load, works on UK 2-wire no-neutral circuits (bypass needed below 25W), and is rock-solid under Z-Wave JS. It needs a deeper back box than most modules — Fibaro specs a 60mm minimum depth, so measure before buying if your pattress is a shallow 16mm or 25mm can. At around £53-55 it costs more than Candeo's Zigbee dimmer module (£39.99), trading Zigbee's simpler mesh setup for Z-Wave's stronger through-wall range and a genuine second scene-controller input Zigbee modules don't offer. Stock has been patchy — Vesternet has shown it backordered before — buy when you see it.
What can Home Assistant control on the Fibaro Dimmer 2 (FGD-212)?
| Control | Type | What it does |
|---|---|---|
| Dimmer output | Light | Primary light entity (brightness 0-99), separate from the scene-controller input node HA also creates for the same device. |
| Power | Sensor (W) | Real-time active power draw from Z-Wave JS's meter command class. |
| Energy | Sensor (kWh) | Cumulative energy consumption, resettable via a service call. |
| Scene activation | Event | Central Scene notifications for single, double, triple press and hold on the physical switch terminals — consumed via a value-notification event, not an entity state. |
| Dimming curve/calibration | Config parameter | Forces leading-edge/trailing-edge calibration behaviour, but the calibration run itself must be triggered by physically holding the device's button, not from HA. |
Native zwave_js discovers this as two logical devices — the dimmer output (light entity plus separate power/energy sensors) and a scene-controller input node whose S1/S2 terminals fire value-notification events for single, double, triple-click and hold, independent of the light entity. Calibration has to be run from the physical button, not from HA — hold it and read the LED colour: green means a dimmable load was recognised, yellow means it's treating the load as non-dimmable, red means it failed (too little load or over the wattage ceiling). Cheap dimmable LEDs on the 2-wire connection are the main practical headache: low draw under ~25W can flicker or fail to switch off fully, which is exactly the bypass/neutral-wire case Fibaro's own FAQ calls out. It advertises S2 security during inclusion but has been reported dropping to S0-only even with a correct DSK, so don't be surprised if it lands S0 rather than the S2 it claims to support.
Specs
| channels | 1 |
|---|---|
| security | S0 (advertises S2, commonly enrols as S0) |
| max load w | 250 |
| dimensions mm | 42.5 x 38.25 x 20.3 (L x W x H) |
| zwave frequency | 868MHz EU/UK |
| power monitoring | true |
| zwave generation | Z-Wave Plus |
| no neutral capable | true |
| min back box depth mm | 60 |
| bypass required under w | 25 |
| operating temperature c | 0 to 35 |
| max load resistive inductive va | 225 |
| max load resistive capacitive va | 200 |
How does the Fibaro Dimmer 2 (FGD-212) compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Fibaro Dimmer 2 (FGD-212) (this product) | £53 | Z-Wave | Yes | Native |
| Aqara Dual Relay Module T2 | £29.74 | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Aqara Single Switch Module T1 (No Neutral) | £26.99 | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Candeo Zigbee Dimmer Module (C-ZB-DM204) | £39.99 | Zigbee | Yes | Zigbee2MQTT / ZHA |
Frequently asked questions
- Does the Fibaro Dimmer 2 (FGD-212) work with Home Assistant locally?
- Yes. The Fibaro Dimmer 2 (FGD-212) is controlled locally in Home Assistant through a built-in Home Assistant core integration (zwave_js), so it keeps working if your internet connection or the Fibaro cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Fibaro Dimmer 2 (FGD-212) use, and do I need a hub?
- The Fibaro Dimmer 2 (FGD-212) uses Z-Wave. To pair it with Home Assistant you need a Z-Wave controller stick attached to your Home Assistant host. Fibaro's own hub is not required when you integrate through a built-in Home Assistant core integration (zwave_js).
- How much does the Fibaro Dimmer 2 (FGD-212) cost in the UK?
- The lowest price we have listed for the Fibaro Dimmer 2 (FGD-212) is £53 at Vesternet, with other UK retailers at up to £54.99. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.