OT: white LEDs
Curt @ Atari Museum
curt at atarimuseum.com
Mon Feb 22 16:56:43 CST 2010
Nice!!! Definitely should see those nationwide, its ashame they
cost so much which I mean - they are LED's, they are a couple of cents
each, its this all profit gouging on Green Products???
Chuck Guzis wrote:
> On 22 Feb 2010 at 23:01, Jochen Kunz wrote:
>> 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. -
> LED street lights are beginning to appear on some California streets.
> As I understand it, there is less light output in absolute terms, but
> the overall effect is one of providing more useful illumination than
> the traditional high-pressure sodium lamps. See:
> for a video report.
> At amazon.com, you can even purchase a 100 watt LED luminaire for
> In my lifetime, I've seen street lighting move from incandescent to
> mercury vapor (horrible light quality) to low-pressure sodium
> (yellow) to high-pressure sodium. LEDs look like a winner and may
> well reduce some of the night-sky "light pollution".
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