What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| On / off (l1) | state_l1 | — | settable |
| On / off (l2) | state_l2 | — | settable |
| After power loss (l1) | power_on_behavior_l1 | off, on, toggle, previous | settable |
| After power loss (l2) | power_on_behavior_l2 | off, on, toggle, previous | settable |
| Power | power | W | read only |
| Voltage | voltage | V | read only |
| Current | current | A | read only |
| Energy | energy | kWh | read only |
| Identify | identify | identify | settable |
| External switch type | external_switch_type | push_button, normal_on_off, three_way | settable |
| Action (button press) | action | on_l1, on_l2, off_l1, off_l2, toggle_l1, toggle_l2 | 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_l1": "ON",
"state_l2": "ON",
"power_on_behavior_l1": "off",
"power_on_behavior_l2": "off",
"power": 12.4,
"voltage": 230,
"current": 0.06,
"energy": 3.21,
"external_switch_type": "push_button",
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state_l1":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state_l2":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"power_on_behavior_l1":"on"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"power_on_behavior_l2":"on"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"external_switch_type":"normal_on_off"}'
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: "Turn off when idle"
mode: single
triggers:
- trigger: numeric_state
entity_id: sensor.my_device_power
below: 2
for: "00:15:00"
actions:
- action: switch.turn_off
target:
entity_id: switch.my_device_l1
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.