Re: [APD] If it's good for street light...

["S. Hieber" <shieber at yahoo_com>]

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
> hrs/day.
> 
> Nick Ternes
> Port Washington, WI
> WAKO
> AKA
> 
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