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      11-11-2019, 08:48 PM   #1846
xraymd
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Drives: 23 M2, 22 Lincoln Navigator
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Quote:
Originally Posted by Sedan_Clan View Post
No it's not. I even have this programmed/coded on my M4. When I brake hard enough, the rear lights will pulse and then become static. I've seen this tech play out in real time, and many fire trucks and buses use this pulse technology too.
Oh you can certainly program the effect to be visible to the naked eye, but I don’t think that’s what’s going on here.

Look at videos of LED headlights. You’ll see them flicker, and that’s not a feature. It has to do with the FPS of the video relative to the LED flicker rate. It’s a modern version of when spinning wagon wheels would seem to freeze or spin slowly in old westerns. Maybe that’s before your time.

https://www.google.com/url?sa=t&rct=...bj1m_WgUFW-DOo

https://www.google.com/url?sa=t&rct=...jjtVzCAwKySYeN

Automotive LEDs are going to be DC and not AC as in the first video, but automotive LEDs aren’t continuously lit as they employ pulse-width modulation (https://en.wikipedia.org/wiki/Pulse-width_modulation), so you end up with a similar effect.

Last edited by xraymd; 11-11-2019 at 09:13 PM..
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