[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [APD] If it's good for street light...
Not only that, but some of the special, narrow spectrum
sodiums can have as high as 80% energy efficiency compared
to about 37% for the super bright LEDs. They are only one
awful color, but for street lighting . . .
--- Nick Ternes <woodland_gardens at gmail.com> wrote:
> "LEDs last four times longer than normal street lighting,
> the Dutch
> electronics group said on Friday. With 50,000 light
> hours, LED lamps
> do not have to be changed for 12 years when lit for an
> average of 11
> to 12 hours a day."
> Last I heard High Pressure Sodium lasted 27 years when
> lit 8-10
> hours/day, and LEDs also lasting 25-28 years lit 8
> Nick Ternes
> Port Washington, WI
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
Plants and DVDs for sale at the AGA table at the ACA 2005 Annual Convention, Fort Worth, Texas on July 21-24, 2005.
ACA Convention Details at
* * * * * * * * * * * * * * * * * * * * * *
Share the fun; show your work.
The AGA's Sixth Annual International Aquascaping Contest is open.
Find about about here:
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com