this post was submitted on 02 Sep 2026
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Color matching LEDs? (lemmy.world)
submitted 1 month ago by batmaniam@lemmy.world to c/homeautomation@lemmy.ml
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Hi!

I have crown molding LED lighting I'm doing. Its turning out well, but most rooms need multiple strips. Not a problem, but the two strips are slightly different color temp. Does anyone know if there's a setting I can play with to get them closer to alignment?

Setup notes:

  • addressable LED strips
  • 24v with oversized power supply
  • driver running WLED
  • two channels on same driver (one strip per).
  • strip lengths are very close but not identical length
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[–] Shadow@lemmy.ca 2 points 1 month ago* (last edited 1 month ago) (1 children)

Are you injecting power at more than just the start of the line? That might solve the color issue. Voltage drop tends to make leds shift a little.

This depends on how long your runs are though, I would expect 24v to be more resistant

[–] batmaniam@lemmy.world 1 points 1 month ago (1 children)

So I'm not doing power injection but I am running it off two separate channels of the same controller. I was hoping to avoid power injection :/

I'm surprised you can't tweak a baseline or something. Based on how it handles effects its got all the range it needs, its just a calibration thing.

[–] Shadow@lemmy.ca 1 points 1 month ago (1 children)

Compare the beginning of the strip against the very end of it, are they the same color? How long are the runs?

[–] batmaniam@lemmy.world 1 points 1 month ago (1 children)

About 5M each. The strips are consistent end to end across themselves, just not with each other.

[–] Shadow@lemmy.ca 2 points 1 month ago (2 children)

Ah probably not voltage drop then. You can try the white balance correction - https://kno.wled.ge/features/cct/#white-balance-correction

[–] batmaniam@lemmy.world 1 points 4 weeks ago

Playing with it, that would deffinitley do it! I just have to figure out how to do it channel by channel.

[–] batmaniam@lemmy.world 1 points 3 weeks ago

Posting for posterity: Given that WLED now allows for layering of effects, I'm going to explore creating a custom effect to change hue/white to match the two strands/channels. Not sure when I'll get to it but leave the breadcrumb for future folk.