In article . com,
F Murtz wrote:
depending on what you are doing in the workshop, when they were
discussing going LED here the subject of rotating machines came up and
how some LED lights might cause problems, and would need special
diffusers fitted to reduce or ellimminate possible flicker.

Fluoros were notorious for the same thing.

Those which ran at mains frequency, yes. Modern high efficiency one run at
a much higher frequency. Perhaps 30,000 Hz.

LEDs are basically DC devices. So don't follow the on/off cycle of the
mains. Some are pulsed, as this allows a longer life at high output, but
don't think this applies to many domestic ones.

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