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Brent Geery
 
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On Fri, 10 Jun 2005 12:23:27 -0400, Larry W4CSC
wrote:

Superbright LEDs has 115VAC/DC led
replacements for standard light bulbs, the most efficient room lighting
known to man. A 3W LED array is the same as a 40W light bulb....


There is nothing efficient about white LEDs. The most efficient
white LEDs produce about 23 lumens per watt. That's barely
better than Halogen at about 18 lumens per watt.

Cold cathode fluorescent (CCF) is where the efficiency is in
small lights-- at about 80 lumens per watt. And, they don't mind
being cycled frequently like their hot cathode fluorescent
cousins.

Unless you require sub-watt levels of light, CCF is the answer,
not LEDs (and they are a hell of allot cheaper than LEDs.)

If you want to play with CCF, check out the kits online. For
example at http://www.elwirecheap.com/coldcathodes.html

--
BRENT - The Usenet typo king.