3 ms·

Low frequancy PWM is annoying, it's not just you: http://www.candlepowerforums.com/vb/showthread.php?104151-Irritating-trend-in-automotive-lighting-PWM-taillig

• to3m 11y ago
  Interesting video of the effect: https://www.youtube.com/watch?v=_XpGUYbehSk https://www.youtube.com/watch?v=_XpGUYbehSk EDIT: Well, I thought it was interesting anyway... my ability to perceive flicker deteriorated markedly after the age of 30 but this way I can at least see how the camera sees it! (I will be keeping an eye out for this phenomenon now but I doubt I could spot it any more unless right out of the corner of my eye.)
• ScottBurson 11y ago
  Yeah, I really think the NHTSA should mandate a much higher minimum frequency.
  • zardo 11y ago
    They should limit the brightness as well, pulling up behind one at a stop light at night is blinding.