Subject: [permaculture] LEDs poised to replace light bulbs
Date: Sat, 24 Jul 2004 17:10:10 -0500
Bright idea: LEDs poised to replace light bulbs
By R. Colin Johnson
EE Times
July 23, 2004 (1:00 PM EDT)
PORTLAND, Ore. — A recent advance in light-emitting diodes may
illuminate the path to replacing light bulbs with LEDs within the next
five years, according to researchers.
Fred Schubert, a professor at Rensselaer Polytechnic Institute (Troy,
N.Y.), claims to have invented a 99-percent efficient reflector that
promises to speed the replacement of light bulbs with LEDs.
"Until now, all lighting systems, especially incandescent bulbs,
generated more heat than light. But our 99-percent efficient reflectors
for LEDs makes them the first candidate for light-bulb replacement that
generates more light than heat," said Schubert.