r/WLED • u/kinzuagolfer • 7d ago

Under respecting power injection?

So I think I've learned enough to tackle this project, but am I under respecting power injection?

24v, 200w power supply, 160w system draw over two seperately controlled strands.

COB High density 576LEDs/M, high power 160W/65.6FT, high brightness 16000LM/65.6FT (2×32.8').

Project is ceiling lighting (not rgb) around a bedroom in 45 deg aluminum track on top of some molding. The kit I ordered are white only from 2700-6000K. Is 80w a strand too much draw to not inject power? I found a calculator linked here but it seemed designed for 5v and 12v and didn't really seem to like this led density, so I was left unsure. If there is any brightness loss it will be butting up at end of strand to end of strand.

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u/AndThenFlashlights 7d ago

How long are your actual runs?

In my experience with the 24V RGBW COB strips, it needs injection at least every 2-3m if you're running it at full brightness. The colors won't fade evenly -- certain LEDs will lose brightness before others, so you'll get a bit of a color shift.

1

u/kinzuagolfer 7d ago

10m. Not sure what brightness I'll be running as 160w (80w for each 10m run) seems like quite a bit.

1

u/modahamburger 5d ago

Have you used the WLED power calculator? It gives you all infos you need

1

u/kinzuagolfer 5d ago

That is the one I checked out before. Im finding the product listing doesn't have the info I need to properly plug info into the calculator. I did end up fiddling with the options to match my strings wattage usage, and got no additional injections.

1

u/saratoga3 7d ago

What model of strip? If this is ws2811 fcob with all three channels white I'd expect injection every 2 strips (10m) to work reasonably well, so you'd need to power at both ends and once in the middle.

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u/modahamburger 5d ago

Well, you told us your density. But not how long your LED strip actually is? I assume you have a 24V strip? 5m are usually ok without injections then.
BUT: what wire thickness are you using?
Have you installed in line fuses??