On Mon, Feb 22, 2010 at 11:47:10AM -0800, Chuck Guzis wrote:
On 22 Feb 2010 at 20:34, Jochen Kunz wrote:
White LEDs have become one of the most efficient
light sources.
Is that really true? I would have suspected that red LEDs would be
far more efficient in terms of lumens-per-watt. The drawback being
that they're monochromatic.
What works in favour of the white LEDs is that everybody has been
working _real_ hard to get their output _way_ up. For the other colors,
the pressure for more light isn't that intense.
Although by now the LED light output in general is high enough that they
are used in traffic lights (a lot of the traffic lights around here
(Zurich) use LEDs).
Regards,
Alex.
--
"Opportunity is missed by most people because it is dressed in overalls and
looks like work." -- Thomas A. Edison