# WS2815 Strips

**URL:** <https://wled.discourse.group/t/ws2815-strips/9636>\
**Category:** Uncategorized\
**Created:** [October 27, 2023, 1:37am UTC](https://wled.discourse.group/t/ws2815-strips/9636 "2023-10-27T01:37:10Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Ervanbus](https://avatars.discourse-cdn.com/v4/letter/e/f04885/32.png) [@Ervanbus](https://wled.discourse.group/u/Ervanbus)\
**Post date:** [October 27, 2023, 1:37am UTC](https://wled.discourse.group/t/ws2815-strips/9636/1 "2023-10-27T01:37:10Z")

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Trying out some Ws2815 strips for the first time. Love them so far but having some issues with them in WLED. When I go to LED preferences and try to change the “length” nothing happens. It doesn’t allow me to only light up 1/2 of the strip. I have a 300 led strip and if I try to only program 200 of them in led preferences, all of them still light up. I’m using a DigQuad so data should not be an issue? All other changes in the app (colors, effects…) change normally. Any ideas?

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**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\
**Post date:** [October 27, 2023, 1:42am UTC](https://wled.discourse.group/t/ws2815-strips/9636/2 "2023-10-27T01:42:32Z")

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Check to make sure your segment lengths go down when you try and do only 1/2.  
I’ve seen where WLED “remebers” things from your previous settings/presets.  
Or alternatively set the Pref-\>Length to 300 and create your segment with 200 and 100 (with different start points).  
You should be able to just light the last 15 LEDs that way.

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**Author:** ![Logdin](https://avatars.discourse-cdn.com/v4/letter/l/b487fb/32.png) [@Logdin](https://wled.discourse.group/u/Logdin)\
**Post date:** [October 29, 2023, 12:16am UTC](https://wled.discourse.group/t/ws2815-strips/9636/3 "2023-10-29T00:16:12Z")

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Where are you setting the 200 value?

Also, are you certain you have WS2815 and not WS2811? I think with the WS2811 you need to set your quantity of LEDS to 1/3of the actual number because it lights up 3 LEDS with each single input.  
Don’t quote me on that. It’s just what I gleaned from the comparisons I was reading before buying a bunch of new strips.

(Try setting a segment to 50 and see what happens. You can always change it back)

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**Author:** ![kilrah](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/kilrah/32/5927_2.png) [@kilrah](https://wled.discourse.group/u/kilrah)\
**Post date:** [October 29, 2023, 9:34am UTC](https://wled.discourse.group/t/ws2815-strips/9636/4 "2023-10-29T09:34:48Z")

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What voltage are those strips? 12V strips typically group 3 LEDs and 24V groups 6 so you actually have 3/6 times fewer pixels than LEDs.

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**Author:** ![Logdin](https://avatars.discourse-cdn.com/v4/letter/l/b487fb/32.png) [@Logdin](https://wled.discourse.group/u/Logdin)\
**Post date:** [October 29, 2023, 7:00pm UTC](https://wled.discourse.group/t/ws2815-strips/9636/5 "2023-10-29T19:00:52Z")

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WS2815 are 12V single LED strips.  
They also have a redundant signal connection which will skip a dead LED rather than kill all the LEDS after a dead one.  
It will keep doing this frog hopping until two LEDs in a row go bad. Then it’s dead like the rest unless you do a manual frog hop over the two bad ones.