# Relay off for sACN

**URL:** <https://wled.discourse.group/t/relay-off-for-sacn/4520>\
**Category:** Questions\
**Created:** [December 28, 2021, 11:11am UTC](https://wled.discourse.group/t/relay-off-for-sacn/4520 "2021-12-28T11:11:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lxkev](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/lxkev/32/10064_2.png) [@lxkev](https://wled.discourse.group/u/lxkev)\
**Post date:** [December 28, 2021, 11:11am UTC](https://wled.discourse.group/t/relay-off-for-sacn/4520/1 "2021-12-28T11:11:36Z")

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So I have been using wled with Xlights for my Christmas display. It has been great.

There has been a number of fires due pixel faults during the holidays and everyone is jumping it to powering off the pixels when not in use.

I understand Wed can trigger a relay if there is no light output…

How does that work when receiving Sacn? When it stops receiving Sacn and my brightness is set to 0 will the relay automatically open the circuit.

When my brightness is set to 0% with brightness override. Will the relay trigger when Sacn starts.

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**Author:** ![blazoncek](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/blazoncek/32/1886_2.png) [@blazoncek](https://wled.discourse.group/u/blazoncek)\
**Post date:** [December 28, 2021, 11:51am UTC](https://wled.discourse.group/t/relay-off-for-sacn/4520/2 "2021-12-28T11:51:45Z")

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It will when realtime data stops and the WLED state is off.  
If your host keeps sending 0s or black color it will not.