# Capacitor

**URL:** <https://wled.discourse.group/t/capacitor/7870>\
**Category:** Questions\
**Created:** [March 26, 2023, 10:28am UTC](https://wled.discourse.group/t/capacitor/7870 "2023-03-26T10:28:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Pommelk](https://avatars.discourse-cdn.com/v4/letter/p/e36b37/32.png) [@Pommelk](https://wled.discourse.group/u/Pommelk)\
**Post date:** [March 26, 2023, 10:28am UTC](https://wled.discourse.group/t/capacitor/7870/1 "2023-03-26T10:28:34Z")

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Hello,

i would like to add a capacitor to my 12v, 2meter, 288LED, WS2815b Setup. To smooth out the circuit.

How do i size my capacitor?:

1. is there any recommended size?
2. is there any ecuacion to use?

thx everyone

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<div class="post-metadata">

**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:** [March 29, 2023, 3:25pm UTC](https://wled.discourse.group/t/capacitor/7870/2 "2023-03-29T15:25:52Z")

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Usually 1000uF with a voltage rating 2-3x what you will be using.