I think your on the right track, I read somewhere that the traffic lights
that use LEDs blink them off and on to save energy. To a person looking at
them they seem to be on steady, but it is just a trick of the eyes (I think
they said that they were off half the time!).
There was also an artical in Popular Science about using LEDs for car
headlights, the hours to failure was about twice the life of the average car
and the fuel saved was said to pay for the lights several times over.
I wish I could help you more, I am going to be following this link closely
as I think you have a good idea and I want to hear other peoples ideas.

Eric

"lupi" wrote in message
...
Any info on this? The 12v single water clear led's are $1.67 and put
out 11000 or 3300 mcd, whatever that is, some measure of how bright
they are. The viewing angle is 30 or 60 degrees. The attraction is
that current draw is almost nothing. I measured .023 amps for a single
lamp.
Also, I want to make an anchor light with 6 of the 60 degree lamps
flashing so fast they look like they are all on- kind of like the
moving pictures principle. A 555 timer chip, a capacitor, a current
limiting resistor? In theory this would still only drawn the current
of one lamp. Is any of this practical? Thanks again, mayteaze.