# \[LIST\] Does it Matter and Work over Thread

**URL:** https://community.homey.app/t/list-does-it-matter-and-work-over-thread/99378
**Category:** Devices
**Tags:** devices, homey-pro-2023, matter, thread
**Created:** [December 29, 2023, 10:45pm UTC](https://community.homey.app/t/list-does-it-matter-and-work-over-thread/99378 "2023-12-29T22:45:07Z")
**Posts on this page:** 1
**Showing post:** 91

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### Author: ![staeff](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/staeff/32/79712_2.png) [@staeff](https://community.homey.app/u/staeff)
#### Post date: [October 12, 2025, 7:17pm UTC](https://community.homey.app/t/list-does-it-matter-and-work-over-thread/99378/91 "2025-10-12T19:17:36Z")

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I just got some Hue Essential GU10 bulbs which I connected via Thread to Homey and when I increase the brightness the lights get colder. I can even change it manually to some warmer color temperature but as soon as I start changing the brightness it will shift again.

When I connect the same bulb via bluetooth to my phone (with the Hue app) the brightness control works as expected.

I assume that it might be some weird way how Homey sends the brightness command? I don’t have another Matter/Thread hub to test this out, but maybe somebody else is also running into this problem?

**EDIT:** I just tried to change the brightness via Homey and I see in the Hue app that the actual configured temperature starts to jump around. So I assume this is really due to how Homey sends the brightness command. @Doekse do you maybe have some insight into that?

**EDIT2:** When I share the matter device and then add it to Apple Home (just on my phone without a hub) the brightness controls also work as expected without shifting color temperature.

**EDIT3:** There is a option for the level control cluster in the Matter spec called “CoupleColorTempToLevel”. I assume that Homey might be using this incorrectly (or at least from my point of view unexpectedly).

**EDIT4:** Seems like it really was changed sometime between 12.5 and 12.7 to be coupled to the color temperature, which seems like a mistake

> [@Matter Lights - "during xx sec" missing](https://community.homey.app/t/matter-lights-during-xx-sec-missing/119090/10):
>
> Yes, still there (at least in 12.7.0): export const LevelControlClusterMethods = ClusterMethodFactory.begin() .withMethod('setLevel', async (ctx, level, transitionTimeMs) =\> { const transitionTime = durationToTransitionTime(transitionTimeMs); await ctx.cluster().sendCommand('moveToLevel', { level, transitionTime: transitionTime, optionsMask: { executeIfOff: true, coupleColorTempToLevel: true, }, optionsOverride: { …

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