Don Klipstein wrote:

In ,
Red wrote:
On Dec 23, 3:28 am, Jim Redelfs wrote:

With no apologies to anyone, I believe that switching to CF lamps won't, over
the LONG "haul", provide a bit of "relief" to our ever-increasing energy
consumption. Although that implies that our ever-increasing energy
consumption needs relief, I am adamantly UNconvinced of that in any case.

I agree, especially in areas where electricity is produced by
hydroelectric plants. It takes just as much water to turn the turbine
whether the generator is producing 1 megawatt or 150 megawatts.

They won't crank down the hydro. Whatever hydropower you don't consume
will get sold over the grid to someplace that will crank down their oil
fired or whatever plants.

Politicians want us, the ones who care, to assume all the guilt and do
something. Yet to you think for a minute that Las Vegas will ever
change out their lights for more efficient ones?

Some of the casinos and other places on "The Strip" have replaced
incandescents with CFLs. Many of the marquees with chasing lights now
have cold cathode CFLs. I was there in early November and I saw the
spiral tubing. And, the upper left corner of my left eyeglass lens is
prismatic enough to see enough spectrum detail to identify light source
types.
Cold cathode ones are somewhat less efficient than hot cathode ones, but
they can be blinked without harm and they are still a lot more efficient
than incandescents.

Or any government
limit each family to only one car? Or the airlines cut back on the
number of flights? No, instead they'll all keep on doing business as
usual and ask us to change out a light bulb or two.

- Don Klipstein )

I seem to recall reading somewhere that a manufacture of metal halide
type HID lamps developed custom lamps specifically for the Vegas casinos
that provided colored output via the lamps gas chemistry vs. external
color filters with a resulting significant increase in efficiency from
eliminating losses from color filters.