Paul Hanson wrote:
Again, I
am ALL FOR LED's, I just think that more research/regulations
need to be applied to them so as not to add more unnecessary
hazard to the roads, and more buyer awareness to support
it. Whether everyone notices this phenomenon or not,
it only takes one confused driver to ruin your whole
day/night.
For the doubters on this thread--does not noticing
something mean it does not exist or matter?

Happily, it doesn't exist on my trailer or motorhome. According to an
email I just received from the light manufacturer (Maxxim), their lights
are not pulsed. So, I can now recommend them without reservation.

I did come across a forum discussing automotive LED lighting, and some
of them had the same problems Paul does, so he's not the only one. I
have no idea how widespread the problem is, however.

My suspicion is after market suppliers like Maxxim don't use pulse
circuitry because it adds cost but no value. LEDs and a few resistors
are going to be cheaper. The car manufacturers might find it a useful
technique to control intensity and flashing for brake and warning
signals. Some use pulsing to provide the daylight running light
function, for example.

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly
* "Transponders in Sailplanes" http://tinyurl.com/y739x4
* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org