Tech
05 Sep 2026
9 min read
Why LED Lights Can Flicker or Form Bands on Camera
An LED lamp can look perfectly steady to your eyes yet appear to pulse in a phone video. A photo taken indoors may show dark horizontal bands that were not visible in the room. Pointing a camera at an LED sign or display can make the effect even more obvious. This usually does not mean the camera or light is broken. The camera is recording changes in brightness that your eyes may not notice, and the timing of the camera’s exposure can turn those changes into visible flicker or bands.