What is flicker?
In its simplest definition, flicker is the constant fluctuation of light output from on to off.LEDs: Fighting Flicker
In the US, the power that comes in through our outlets cycle at 60 times per second. Instead of one continuous stream of electrons, it goes ON and OFF 60 times per second (referred to as 60 Hz). Many light bulbs also flicker at 60 Hz and cycle towards full brightness and full darkness. We call that the flicker rate.
(I’m going to gloss over this but the circuitry connected to a light source can create light that is a higher flicker rate than 60 Hz. Many fluorescent bulbs are 120+ Hz for example, and some LED lights are even higher than that. This is an extremely technical discussion that you can read more about in the research I’ve referenced in this article).
Many people never notice the flicker, but we probably all know at least one person that can see it in a light bulb or TV or computer monitor.…