Bulbs first display old color before transitioning to new color | Home Assistant | Page 1

pearl roost Dec 17, 2024, 5:34 PM

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Hello all, I have a problem where my bulbs first display their previous color (for about 50ms) before they transition to the new color that I selected in Home Assistant.. why is this and how do I prevent this? I want to stop getting flashbanged when I turn on the lights in the dark at 10% but the previous value was 100%..

This doesn't happen when I directly change the light color in Zigbee2MQTT, but only in Home Assistant.

proven lichen Dec 17, 2024, 5:35 PM

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Some bulbs don’t allow for this. What do you have?

pearl roost Dec 17, 2024, 5:36 PM

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IKEA Tradfri bulbs and I even bought a few new ones from a different brand (RexTech), all have the same issue

proven lichen Dec 18, 2024, 4:32 AM

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The only ones I have that work the way you want are from lifx. There may be other solutions.

Also found this which could apply somewhat https://community.home-assistant.io/t/tradfri-transition/17530/25

Home Assistant Community

Tradfri Transition

Some of my tradfri bulbs have issue with not beeing able to use transitions and set wanted brightness, the way i made it work is to first send a “turn_on” to the problematic bulb first, and then the scene with the transition. (scene includes that same problematic bulb) It seem that some of the bulbs needs to be turned on before it can recive a...

pearl roost Dec 18, 2024, 7:19 PM

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Thanks, I figured out that everything works if I just set the color first (before calling light.turn_on) and then turning on the light guarantees a good transition without the previous color

maiden olive Dec 18, 2024, 7:22 PM

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fwiw, all the ikea tradfri bulbs i own support the commands to change color/brightness without turning the bulb on needed to support this. I don't have any experience with Z2M regarding this feature tho. ZHA does not use it by default.

pearl roost Dec 18, 2024, 8:20 PM

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maiden olive fwiw, all the ikea tradfri bulbs i own support the commands to change color/brig...

Yeah same here, figured that out after a lot of trial and error. Only thing is, Home Assistant doesn't send light.turn_on in two separate commands which is what I'm trying to achieve right now

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Just not very sure how to do it yet without it taking hours to setup

#Bulbs first display old color before transitioning to new color