Re: [Paddlewise] paddling at night

From: Joe Pylka <pylka_at_castle.net>
Date: Mon, 8 Mar 1999 14:41:50 -0500
>They beauty of these lights is that you can set them up on the boat during
>daylight hours and not worry about lighting as it gets dark. The single
>white LED is quite bright and it's easy to gang 2 or 3 together. Each one
>draws around 20-30 ma as opposed to 500 ma for an incandescent bulb. They
>will retain brightness at lower voltages then an incandescent bulb and bulb
>life is 50,000 hours! The white LEDs are uncomfortable to look at, even in
>daylight.

    I'll have to try the white LEDs.  Were you the one using 3909s?  What
sort of duty cycle?

You remind me that I was at a cemetery near Doylestown, PA recently and I
saw some solar powered Eternal Lights by some tombstones.  about 16-20
square inches of panel evidently storing into a battery thence to a
superbrite red LED in a translucent plastic block.  Shade the panel (i.e.
the sun went down) and the LED lit up.



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Received on Mon Mar 08 1999 - 11:40:10 PST

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