It's PWM dimming. I see it most on Cadillac SUVs. Drives me nuts too. They could... | Hacker News

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sathackr on Feb 8, 2025 | parent | context | favorite | on: The origins of 60-Hz as a power frequency (1997)

It's PWM dimming. I see it most on Cadillac SUVs. Drives me nuts too.

They could design it not to be that low of a frequency but apparently someone thought that 40-50hz was imperceptible to humans and went with it

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