RE: [Paddlewise] LED lights

From: Bob Denton <BDenton_at_aquagulf.com>
Date: Fri, 22 Jan 1999 12:09:43 -0500
Wrong Wrong Wrong Wrong! 

The LEDs that I am playing with are 1.2 (12000 MCDs) and .5 (5000 MCDs)
candle power. They are bright enough to read with and in tests on the water
at night are visible for at least 500 yards. The LEDs you are referring to
typically put out between 50 and 350 MCDs.

I am going to try some trials this weekend to see what the maximum range
will be with an LED mounted in a Vortec head lamp and another mounted in an
$8 clip on PFD light (1 Dcell type converted to 2 AAs.) My guess is
visibility on a dark night will be 1/2 mile.

There are supposed to be new White LEDs that go as high as 4 candle power
that are available. 

, 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 visibility.
> 
> Now, if you had a whole string of them along the sheerline 
> you would really
> show up.
> Nick
> 
> At 5:55 PM -0500 1/21/99, Bob Denton wrote:
> >My 2 led devices are still going strong on their original 
> set of batteries.
> >One since Friday night running on 2 D cells and the other 
> since Sunday with
> >2 AAs. I am going to try a couple more using 2 AAAs and 
> mount it in a PFD
> >signal light I just bought.
>
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Received on Fri Jan 22 1999 - 09:13:38 PST

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