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Ironphist

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#15 : May 21, 2007, 08:31:09 AM

in engineering there is an old axiom that says you don't get something for nothing.  what many people don't understand about lighting is that the problem is not in the bulb or lamp - it's in the ballast.  the fast striking contacts fire thousands of times per second to induce heat that converts the gases to lumens.  the arcing that comes off of the ballast in fact produces an avalanche of high frequency ringwaves that contaminate and pollute electrical distributions systems - basically robbing a conductor of its "bandwidth".

you wanna save money and the electrical grid?  get rid of the AC to DC switch mode power supplies that radiate high frequency line noise and dramatically create heat and resistance in ALL conductors.  right now we are all only getting upwards of 60% efficiency across our load base because of the built in impedances derived from the way we use power.  you may save money per kilowatt hour by using compact fluorescent lamps, but the damage to the rest of your home circuitry will cut into those minimal savings over the long haul.

when everyone gets smart and stops talking about energy savings and starts focusing on energy efficiency, then we will have cracked the code that powerful utilities don't want us to know.  you can't get enough digital equipment in your home to satisfy them.  all of the voltage drops require and proportionate current draw to keep things running - the meter spins when current flows - not voltage...  we are not getting that message because the world operates on 5 volt DC printed circuit boards.

alstott40

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#16 : May 21, 2007, 07:55:55 PM

If its that big of deal they should ship those to  everyone in the U.S.




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#17 : May 22, 2007, 09:13:07 PM

This is from an article about the upcoming Boeing 787's:

"It is using LED lighting to create a cabin lighting environment that can vary with the time of day from a restful pastel-colored glow at dawn and dusk to brighter daytime lighting and a subdued midnight-blue shade in late evening."
http://news.yahoo.com/s/space/20070510/sc_space/tomorrowsairlinersstrongermorecomfortableandmainlyplastic

So, it looks like commercial LED lighting will be here shortly, and available in different colors as well.


The White Tiger

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#18 : May 22, 2007, 11:59:12 PM

That will be cool illuminator - but will they be accomodating the travelers from a country into another time zone, or will they acomodate those in the time zone where they're going , or just Americans on every flight? ;D

I couldn't resist - is my zenophobia is showing?

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