Zigbee lights color loop

Configuration
1

Hi,
I have a bunch of Ewelink zigbee lights with GU10 and E27 format. In HA, they all show up as CK-BL702-AL-01. Connection and control works, but HA also offers an effect “Color loop”. When I activate that, it just changes color to purple and stops. Does anyone else have these lights and knows how this color loop is actually supposed to work?

PS: I use ZHA

2

Cycle thru all colors once.

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Yeah, I’ve noticed that same behavior with some Ewelink Zigbee bulbs on ZHA — the “color loop” effect rarely works as intended. It’s supposed to cycle continuously through the RGB spectrum, but many budget Zigbee models (like CK-BL702-AL-01) don’t fully support that command in their firmware.

A couple of things you can try:

  • Use Zigbee2MQTT instead of ZHA — it sometimes exposes custom effects better.
  • Manually create an automation in HA to change the hue every few seconds; it’s a decent workaround and gives you more control over timing and transition speed.

Seems like it’s more a firmware limitation than an HA issue.

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You mean, select colors manually and then start the effect? Same behavior, it just goes to purple and stops.

hmm, I might try that. Involves some work though, since I already have a bunch of devices. I would then have to add all of them in Z2M, right? What if I would want to go back to ZHA? Would it suffice to restore a backup of the HA VM or would I have to again add all the devices back to ZHA?

5

Maybe just use this instead.

1 Like
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Yeah, thanks. An automation does the trick of course.

I also tried out Z2M out of curiosity and moved some devices over. The colorloop effect there does exactly the same, i.e. switch to purple and stop there.

Anyway, I have a few more issues with Z2M, so started a new thread for that.