My cousin sells the coolest little LED key chain lights via the internet
(www.photonlight.com) that, while expensive, are VERY cool and bright.
They are TINY! about the size of a U.S. quarter, use a replaceable watch
battery, are very bright (my red LED can be seen from 2 miles away, no
kidding!), and the replaceable batteries last forever because of the
miniscule current draw.
My cousin tells me that the red LED microlight will burn for 4-5 days
straight (~120 hours!) with one battery. I can attest to this, as I've had
my red light for over 3 years and I have yet to change the battery--and
believe me, I use it all the time. (especially when stuck on the side of
the road with car trouble!)
They sell the LED wonder-lights in every color, from red to white to blue
to green. White draws more current than other colors, and red draws the
least of all--so white LEDs supposedly kill the battery in only 24-40 hours
of continuous use.
My cousin works for the inventor of the various color LEDs and the photon
microlight. So if you buy one, you're benefiting the inventor, not some
company that stole his idea. Check it out--I love my light!
Alex Avery (I have no financial interest in this at all--so no flaming!)
At 07:05 PM 2/20/01 -0600, Patrick J. Horne wrote:
>Tom Walter has some red/green LED modules that he bought in Dallas last week.
>They have about 16 LEDs of each color. With just the reds running the module
>was only slightly warm. It drew 50 Ma. at 16V. I didn't have my photo light
>meter with me to compare their light output to that of a filament tail light,
>but I would guess that the LED output was a bit less than the filament tail
>light bulb. One other thing to consider is that a LED has a built in lens,
>so most of the light is output in one direction, while a filament bulb has
>a much wider output angle.
>
>Peace,
>Pat
>
>--
>- Support Habitat for Humanity, A "hand up", not a "hand out" -
>
>Pat Horne, Network Manager, Shop Supervisor, Future planner
>CS Dept, University of Texas, Austin, Tx. 78712 USA
>voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu
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