TRÅDFRI bulb GU10 WS 400lm

This documentation was generated from: gu10_ws_400lm_light.json

status Bronze
product TRÅDFRI bulb GU10 WS 400lm
modelid TRADFRI bulb GU10 WS 400lm
manufacturername IKEA of Sweden

1. Color temperature light

Endpoint: /lights

Top level attributes

id String Identifier of the resource, unique within an endpoint. R
lastannounced ISO 8601 timestamp Timestamp of the last power-cyle or rejoin. R
lastseen ISO 8601 timestamp Timestamp of the last communication. R
manufacturername String "IKEA of Sweden" R
modelid String "TRADFRI bulb GU10 WS 400lm" R
name String Name of the resource. RW
swversion String Firmware version of the device. R
type String "Color temperature light" R
uniqueid String Unique identifier of the resource. R

Config attributes

colorcapabilities UInt16 The supported color modes as bitmap.

Default: 16

ctmin UInt16 Minimum supported color temperature.

Default: 250

ctmax UInt16 Maximum supported color temperature.

Default: 454


State attributes

on Bool True when device is on; false when off. RW
bri UInt8 The current brightness. RW
ct UInt16 The current Mired color temperature of the light. Where Mired is 1000000 / color temperature (in kelvins). RW
reachable Bool When true the device is assumed to be operational. R
colormode String The currently active color mode.

Default: ct

  • "ct" — color temperature
alert String The currently active alert effect.

Default: none

  • "none" — light is not performing an alert
  • "select" — light is blinking a short time
  • "lselect" — light is blinking a longer time

Example output

  "colorcapabilities": 16,
  "ctmax": 454,
  "ctmin": 250,
  "hascolor": true,
  "lastannounced": "2020-12-07T22:29:41Z",
  "lastseen": "2020-12-30T16:29Z",
  "manufacturername": "IKEA of Sweden",
  "modelid": "TRADFRI bulb GU10 WS 400lm",
  "name": "Desk lamp",
  "state": {
    "alert": "none",
    "bri": 254,
    "colormode": "ct",
    "ct": 454,
    "on": true,
    "reachable": true
  "swversion": "2.3.050",
  "type": "Color temperature light",
  "uniqueid": "00:0b:57:ff:fe:26:56:80-01"

Known Issues

Radio Silence

All mains powered IKEA lights and repeaters have a bug that causes the device to not operate correctly anymore. The bug is triggered mostly in larger networks with many end-devices likely after receiving a Parent Announce message a few times.

Workaround: To get the device back online it must be power-cycled. Which means cut the power for a few seconds. After that the device should work normally again.