RE: [Paddlewise] LED Lights

I modified a Pelican clip on headlight (2AA) to use a green LED as a light
source.  It is intended as a skulking light as well as a long lasting
flashlight.  I found the LED at Radio Shack, the light gives enough
illumination to see for walking in the woods and on the rocks of the North
Shore of Lake Superior.  I observed that the LED was quite visible for
several hundred yards as an unnaturally bright and small green dot.
Multiple LEDs would work well as a signal marker, see the flashing LED bike
lights for an example, a single LED is not likely to give off enough light
to be useful as a safety signal.

Dana Dickson 


<snip>
From: Nick Schade <schade_at_guillemot-kayaks.com>
Subject: Re: [Paddlewise] LED lights

One reason LEDs run so long on batteries is they don't draw much power
(obviously), and one reason they don't draw much power is they don't put
out much light. The LEDs will probably be very hard to see from more than
100 ft. One or two lights probably won't provide much visiblity.

Now, if you had a whole string of them along the sheerline you would really
show up.


<snip>
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