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IKEA LED1842G3

Model LED1842G3
Vendor IKEA
Description TRADFRI LED bulb E27 WW clear 250 lumen, dimmable
Supports on/off, brightness
Picture IKEA LED1842G3

Notes

Pairing

Factory reset the light bulb (video). After resetting the bulb will automatically connect.

While pairing, keep the bulb close the the CC2531 USB sniffer.

What works is to use (very) short “on’s” and a little bit longer “off’s”. Start with bulb on, then off, and then 6 “on’s”, where you kill the light as soon as the bulb shows signs of turning on.

Device type specific configuration

How to use device type specific configuration

Manual Home Assistant configuration

Although Home Assistant integration through MQTT discovery is preferred, manual integration is possbile with the following configuration:

light:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    brightness: true
    schema: "json"
    command_topic: "zigbee2mqtt/<FRIENDLY_NAME>/set"

sensor:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    unit_of_measurement: "-"
    value_template: "{{ value_json.linkquality }}"