OT: white LEDs (was: Re: Solderless breadboarding (and 68010 vs 68000))

Jochen Kunz jkunz at unixag-kl.fh-kl.de
Mon Feb 22 16:01:00 CST 2010

On Mon, 22 Feb 2010 11:47:10 -0800
"Chuck Guzis" <cclist at sydex.com> 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.
Well. I meant LED in general, white in special, in contrast to e.g.
CFL, HID, sulfur, ... Also take in account that the human eye has a
fairly low sensitivity for red light. Lumens are weightend by the
spectral sesitivity of the human eye.


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