Wonder why your LED lights seem to flicker or flash on and off in a weird Japanese seizure-inducing way when they are moved?

That’s a visual effect known as “flicker” that occurs due to the frequency of the electricity that comes out of your outlet. For a more in-depth discussion of the cause of flicker, see our blog post: Why are my LED lights flickering?

Unfortunately, there are no easy fixes for removing the flicker on a string of LED lights.

High quality LED light strings are constructed with inline filters – sometimes more than one – that smooth out the input electrical waveform so there is less “wave” to be visible to the eye.

So, when you are shopping for Christmas light strings, be sure to look for the phrase “fully rectified” for as little flicker in your lights as possible.