# Is it possible to let only every second LED light up?

**URL:** <https://wled.discourse.group/t/is-it-possible-to-let-only-every-second-led-light-up/3698>\
**Category:** Questions\
**Created:** [October 4, 2021, 11:01am UTC](https://wled.discourse.group/t/is-it-possible-to-let-only-every-second-led-light-up/3698 "2021-10-04T11:01:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![hagene](https://avatars.discourse-cdn.com/v4/letter/h/b4bc9f/32.png) [@hagene](https://wled.discourse.group/u/hagene)\
**Post date:** [October 4, 2021, 11:01am UTC](https://wled.discourse.group/t/is-it-possible-to-let-only-every-second-led-light-up/3698/1 "2021-10-04T11:01:51Z")

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Hello, everyone,

I am new here and am currently dealing with WLED. That’s a great thing.

Unfortunately, I don’t speak English very well and I use the goole translater to ask my question, I hope that’s ok? Writing in German probably doesn’t make sense, does it?

Actually, I have WLED running with an ESP8266, via MQTT this also works with my in-house automation program.

What would interest me, however, is that you can only use every second LED for some things? So if I want to let the strip shine red, only every second LED should be on.

Is something like that possible and if so how do I have to go about it? can the WLED itself or do you need any other programs / extensions.

I hope someone can help me and is ready to answer me (despite probably very poor English).

Thanks and best regards  
Stephan

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**Author:** ![tonyno](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/tonyno/32/242_2.png) [@tonyno](https://wled.discourse.group/u/tonyno)\
**Post date:** [October 4, 2021, 12:32pm UTC](https://wled.discourse.group/t/is-it-possible-to-let-only-every-second-led-light-up/3698/2 "2021-10-04T12:32:11Z")

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Look at the Spacing parameter in segment settings.

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**Author:** ![hagene](https://avatars.discourse-cdn.com/v4/letter/h/b4bc9f/32.png) [@hagene](https://wled.discourse.group/u/hagene)\
**Post date:** [October 4, 2021, 3:50pm UTC](https://wled.discourse.group/t/is-it-possible-to-let-only-every-second-led-light-up/3698/3 "2021-10-04T15:50:36Z")

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> [@tonyno](#):
>
> Look at the Spacing parameter in segment settings

many thanks for the answer. actually brought me further.

the led strips now shine the way i want them to.

I still have one question. i synchronize two strips with the sync button. the segment does not seem to work, how can you keep two or more strips in sync?

I also have one question about xlights, can you keep several strips in sync and do you have to work with music here? so far i don’t want to do anything with music, but already light up the house without music.

thank you ever for further answers.

Many greetings  
stephan

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**Author:** ![tonyno](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/tonyno/32/242_2.png) [@tonyno](https://wled.discourse.group/u/tonyno)\
**Post date:** [October 4, 2021, 6:56pm UTC](https://wled.discourse.group/t/is-it-possible-to-let-only-every-second-led-light-up/3698/4 "2021-10-04T18:56:51Z")

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The newly-added vitrual-strip support in the [Blaz branch](https://github.com/blazoncek/WLED/tree/dev) may get you the syncing you want.