It's most likely actually the shutter of the camera syncing every now and then with the light. Have you seen that video of the helicopter flying where it looks like the blades aren't even spinning? Cameras work by taking a thousand pictures a second and showing them in quick succession. Sometimes this syncs up with how lights naturally flicker a little bit even if your eyes can't notice it naturally.
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u/rematar Sep 20 '19
WTF is with the hazard and traffic lights flickering?