I’m curious, how many people are aware of these sounds. I have designed, etched, and built my own switching power supplies along with winding my own transformers. I am aware of the source of the noise. So, does anyone else hear these high frequency sounds regularly?
Not too often, but can any of you guys see LEDs flicker?
Worked on a building site with LED work lamps and couldn’t work out why I got a sharp, blinding headache at about 2pm every day
Changed them for halogen ones, problem gone
Couldn’t see a flickering, but could kinda sense it
Is this all leds or just some? Led lights / led screens?
I’m genuinely curious. I think I’m more sensitive to flickering lights than most (I see a flickering light/screen where others see none), but my experience with flickering lights has vastly improved since led lights became standard and high fps ips screens became basically the standard in office settings.
What led lights I still see flicker: some laptop screens, I suspect a faulty psu. And I’ve seen led halogen bulb replacements have issues.
What I used to see flicker: every freaking tube pc screen. It was maddening, computer rooms especially.
Edit: led lights in halogen fixtures is apparently a known problem: https://www.ledkia.com/blog/uk/how-to-fix-a-flickering-led-bulb/
I think it has to do with the frequency they operate at (when dimmed?) . 50/60 Hz is obvious, but some with a higher frequency are still recognizable.
Any time there is motion I get a strobe light effect. Either when looking at something that’s moving or moving my eyes to look at something. It’s like when you wave your hand in front of you when looking at an old CRT TV.