What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Light | state, brightness | on / off, brightness | settable |
| Min brightness | min_brightness | % · 1…50 | settable |
| Max brightness | max_brightness | % · 51…100 | settable |
| Dimming speed | dimming_speed | s · 1…10 | settable |
| Start brightness | start_brightness | 1…254 | settable |
| Startup on off | startup_on_off | off, on, toggle, previous | settable |
| Dimmer mode | dimmer_mode | trailing_edge, leading_edge | read only |
| Power | power | W | read only |
| Voltage | voltage | V | read only |
| Current | current | A | read only |
| Energy | energy | kWh | read only |
MQTT: state and commands
Zigbee2MQTT publishes the device state to zigbee2mqtt/my_device (my_device is the name you give the device). An example message:
{
"state": "ON",
"brightness": 180,
"min_brightness": 26,
"max_brightness": 76,
"dimming_speed": 6,
"start_brightness": 128,
"startup_on_off": "off",
"dimmer_mode": "trailing_edge",
"power": 12.4,
"voltage": 230,
"current": 0.06,
"energy": 3.21,
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"ON","brightness":180}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"OFF","transition":2}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"startup_on_off":"on"}'
Watch the topics live from the browser: MQTT client.
Home Assistant automation example
Zigbee2MQTT creates Home Assistant entities from the device name. If it is called my_device, an automation in automations.yaml can look like this:
- alias: "Light at sunset"
mode: single
triggers:
- trigger: sun
event: sunset
offset: "-00:15:00"
actions:
- action: light.turn_on
target:
entity_id: light.my_device
data:
brightness_pct: 70
Check the YAML: YAML checker.
How to pair it
- In Zigbee2MQTT click Permit join.
- Put the device in pairing mode: usually a long press of the reset button (5–10 s) until the LED blinks; bulbs: switch the power off and on 5–6 times.
- Keep the device close to the coordinator or a router while pairing.
- Give it a clear name: MQTT topics and Home Assistant entities are built from it.
Exact procedure and model notes: the device page in the Zigbee2MQTT docs. No coordinator yet: coordinator picker.