Eve Dimmer Switch is an in-wall dimmer on Matter over Thread that replaces a standard switch and dims LED, incandescent, halogen, and low-voltage lighting.
Requires a neutral wire and replaces a single-pole switch. In a 3-way setup it goes in the box where the wire to the light fixture connects, and the other switch stays a regular one. It dims up to 150 W of LED lighting, or 600 W of incandescent or halogen. The bulbs must be dimmable, and it is not for ceiling fans.
Home Assistant adds it through the Matter integration without an Eve account. The bulb type and dimming range that keep LED bulbs from flickering are set in the Eve app, which needs Apple Home or Google Home.
Because it is always powered, it also relays for battery Thread sensors such as Eve Door & Window and Eve Motion, which makes the Thread network stronger. A Thread border router is still needed on the network.
Entities in Home Assistant
Typical 4 entities via Matter
This model has no device dump in Home Assistant's test suite, so the list below is what a Matter Mounted Dimmable Load Control exposes at minimum. Optional features the manufacturer implements add entities on top.
Primary entities 1 What automations and dashboards use.
| Entity | Type | Device class | Unit |
|---|---|---|---|
| Light (main) | light | — | — |
Configuration 3 Settings exposed as entities, tunable from Home Assistant.
| Entity | Type | Device class | Unit |
|---|---|---|---|
| On level | number | — | — |
| Power-on level | number | — | — |
| Power-on behavior | select | — | — |
Derived from Home Assistant 2026.8.3: the entities every reference implementation of a Matter Mounted Dimmable Load Control produced in core's own tests. A floor, not the full list for this model.
Recipes using this device
Recipes that can use it
These recipes are built around other hardware, and pick this device up as an optional extra.
Motion Hallway Light
Installs a Home Assistant automation that turns a hallway or landing light on when motion is seen and off again once the space has been still for a grace period you set. Add a light sensor and it only runs after dark, add a presence sensor and it holds the light while someone lingers.
Movie Mode
Installs a Home Assistant automation that dims the lights when the TV starts playing and brings them back when it stops. Add shades to close, a soundbar to power on, a scene button to trigger it by hand, and dimmable accent lights.
Presence Room Lighting
Installs a Home Assistant automation that keeps a room's lights on for as long as an mmWave presence sensor sees someone in it, and switches them off shortly after the room empties. Add a light sensor to run only after dark, and dimmable lights that come up softly.