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submitted 1 year ago* (last edited 1 year ago) by Peaces@infosec.pub to c/technology@lemmy.world
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[-] troyunrau@lemmy.ca 2 points 1 year ago

You're seeing the 60Hz sinusoid caused by using AC electricity. 60 peaks, 60 troughs -- but the like is actually turning on and off 120 times per second when on AC, unless it's first converted to DC. Cheap LEDs just feed AC.

this post was submitted on 19 Jul 2023
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