Richard Clark wrote:
LEDs have been in general illumination for quite a few years - even
for headlights.

I know that. The question was and is: WHEN DID THEY START
TIME MULTIPLEXING AUTOMOBILE TAILLIGHTS? I am asking for
information and it's perfectly OK if you don't know.

Constant current LEDs have been in use for years. But it's
just over the last couple of months that I have noticed
the pulse-width modulation on some automobile taillights.
I suspect it's only one or two manufacturers so far.
--
73, Cecil http://www.qsl.net/w5dxp


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