[Rhodes22-list] Environment -- dimming bulbs - small scale
Robert Skinner
robert at squirrelhaven.com
Fri Feb 23 17:18:42 EST 2007
Ed, thanks for the reference.
The technology is what I was describing, but has yet to be
reduced to the size that would fit in the base of a CFL lite, be
able to finction in a 0-to-125 volt environment, and produce light
output proportional to the input voltage.
The race is still on for the engineer who can design that package.
Sorry, Ed, you will just have to put up with me for another voyage.
I'm still on the boat!
/Robert
-------------------------------------------------------------------
Tootle wrote:
>
> Bob:
>
> I think that you missed another boat, see:
>
> http://www.fifthlight.com/technology_dimmableelectronicballast.html
>
> That is unless you are marketing the program for home computers?
>
> Ed K
> Greenville, SC, USA
>
> Robert Skinner wrote:
> >
> > Hank, you have put your finger on a huge potential market.
> >
> > Theoretically, with chopper circuits and pulsed output,
> > you could make a florescent bulb that would be dimmable.
> >
> > Since many dimmers use SCRs (silicon controled rectifiers)
> > which do not put out the same form of alternating current
> > that the existing coil bulbs expect, the design would
> > take some work.
> >
> > It may be a while before dimmable coil bulbs come to market,
> > but when they do...
> >
> > /Robert
> > ------------------------------------------------------------
> > Hank wrote:
> >>
> >> One of the problems with these is they don't work with dimmers. All of
> >> my
> >> recessed lights are on dimmers that I use all of the time, so it is not
> >> practical to switch. For regular lamps we have switched.
> >>
> >> Hank
> >>
> >> On 2/22/07, Brad Haslett <flybrad at gmail.com> wrote:
> >> >
> >> > Ok folks, here is a quick and 'clean' thought. I'm not preaching, but
> >> we
> >> > have been switching to these bulbs as the old ones burn out. They
> >> aren't
> >> > cheap, and I don't know where the break-even point is, but you feel
> >> better
> >> > and it gives you a certain environ-snobbery arguing position. You can
> >> buy
> >> > them at SamsClub, WalMart, and other eco-friendly stores.
> >> >
> >> > Brad
> >> >
> >> > ------------------------
> >> >
> >> > Back to Story<
> >> >
> >> http://news.yahoo.com/s/ap/20070220/ap_on_sc/ban_the_bulb_8;_ylt=AqA0NiAnFgJ315H_dAZJJLlxieAA
> >> > >-
> >> > Help<
> >> >
> >> http://us.lrd.yahoo.com/_ylt=AmAEg00nzg5WmJGCFhRVhQFxieAA/SIG=10rbjkhqd/**http%3A//help.yahoo.com/
> >> > >
> >> > [image: Yahoo! News]<
> >> > http://news.yahoo.com/;_ylt=AltToAxFx686SzI720Fzl69xieAA>
> >> > Australia to ban old-style light bulbs
> >> >
> >> > By ROHAN SULLIVAN, Associated Press WriterTue Feb 20, 6:26 PM ET
> >> >
> >> > The Australian government on Tuesday announced plans to phase out
> >> > incandescent light bulbs and replace them with more energy-efficient
> >> > compact
> >> > fluorescent bulbs across the country.
> >> >
> >> > Legislation to gradually restrict the sale of the old-style bulbs could
> >> > reduce Australia's greenhouse gas emissions by 4 million tons by 2012
> >> and
> >> > cut household power bills by up to 66 percent, said Environment
> >> Minister
> >> > Malcolm Turnbull.
> >> >
> >> > Australia produced almost 565 million tons of greenhouse gases in 2004,
> >> > official figures show.
> >> >
> >> > Prime Minister John Howard said the plan would help all Australians
> >> play a
> >> > part in cutting harmful gas emissions: "Here's something practical that
> >> > everybody will participate in."
> >> >
> >> > In incandescent light bulbs, perfected for mass use by Thomas A. Edison
> >> in
> >> > the late 19th century, electricity flows through a filament to create
> >> > light.
> >> > Much of the energy, however, is wasted in the form of heat.
> >> >
> >> > Australia is not the only place looking to replace them with
> >> fluorescent
> >> > lighting, which is more efficient and longer lasting.
> >> >
> >> > Last month, a California assemblyman announced he would propose a bill
> >> to
> >> > ban the use of incandescent bulbs in his state. And a New Jersey
> >> lawmaker
> >> > has called for the state to switch to fluorescent lighting in
> >> government
> >> > buildings within three years.
> >> >
> >> > Cuba's Fidel Castro launched a similar program two years ago, sending
> >> > youth
> >> > brigades into homes and switching out regular bulbs for energy-saving
> >> ones
> >> > to help battle electrical blackouts around the island.
> >> >
> >> > The idea was later embraced by Castro's friend and ally, Venezuelan
> >> > President Hugo Chavez, who announced his own program to save energy and
> >> in
> >> > recent months has given away millions of fluorescent bulbs in
> >> > neighborhoods
> >> > nationwide.
> >> >
> >> > Under the Australian plan, bulbs that do not comply with energy
> >> efficiency
> >> > targets would be gradually banned from sale. Exemptions may apply for
> >> > special needs such as medical lighting and oven lights.
> >> >
> >> > Fluorescent bulbs are currently more expensive than incandescent bulbs,
> >> > but
> >> > use only about 20 percent of the power to produce the same amount of
> >> light
> >> > and last longer, making them more competitive over time, advocates
> >> argue.
> >> >
> >> > Environmentalists welcomed the light bulb plan, but noted than the vast
> >> > bulk
> >> > of Australia's greenhouse gas emissions come from industry, such as
> >> > coal-fired power stations.
> >> >
> >> > They urged the government to set national targets for emission
> >> reductions
> >> > and renewable energy.
> >> >
> >> > "It is a good, positive step. But it is a very small step. It needs to
> >> be
> >> > followed through with a lot of different measures," Australian
> >> > Conservation
> >> > Foundation spokesman Josh Meadows told Australian Broadcasting Corp.
> >> > radio.
> >> >
> >> > Howard has become a global warming convert, conceding in recent months
> >> for
> >> > the first time that human activity is having an effect on rising
> >> > temperatures.
> >> >
> >> > But he has steadfastly refused to bring Australia into line with most
> >> of
> >> > the
> >> > world and ratify the Kyoto protocol on greenhouse gas reductions,
> >> arguing
> >> > that doing so could damage Australia's coal-dependent economy.
> >> >
> >> > Copyright (c) 2007 The Associated Press. All rights reserved. The
> >> > information contained in the AP News report may not be published,
> >> > broadcast,
> >> > rewritten or redistributed without the prior written authority of The
> >> > Associated Press.
> >> > Copyright (c) 2007 Yahoo! Inc. All rights reserved.
> >> > Questions or Comments<
> >> >
> >> http://us.ard.yahoo.com/SIG=12f1p5o19/M=224039.1983420.3465435.1919853/D=news/S=14715249:FOOT/_ylt=AvXfD0ah5M6LM8riA7dE0IZxieAA/Y=YAHOO/EXP=1172197187/A=1030392/R=1/SIG=1124ddvo1/*http://help.yahoo.com/help/news/
> >> > >
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> > --
> > Robert Skinner "Squirrel Haven"
> > 9 Gateway Commons, Gorham, Maine 04038-1331
> > Home/Messages 207-839-8777, Cell 207-653-1752
> > __________________________________________________
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> >
> >
>
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--
Robert Skinner "Squirrel Haven"
9 Gateway Commons, Gorham, Maine 04038-1331
Home/Messages 207-839-8777, Cell 207-653-1752
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