Linked by weildish on Wed 4th Feb 2009 04:54 UTC
In the News Yes, actually. The old-school, inefficient, heat-generating incandescent bulbs are all but history, CFL (compact florescent) bulbs taking the pedestal what with how relatively inexpensive and efficient they are when it comes to both electricity consumption and overhead cost. However, even these may have a short-lived supremacy as British scientists developed a new way of "growing" the material needed for LEDs on silicon instead of sapphire wafers, which was the original and somewhat expensive way of doing it. Because of this, household-grade lights of LED nature can be produced for under $5.00 and last up to sixty years. LEDs are three times more efficient than CFLs, last substantially longer, and contain no mercury, so they're even more environmentally friendly. These wonder-bulbs are supposed to be available to consumers within two years. It is estimated that if these new bulbs were to be installed in every home and office, it would cut electricity used on lighting by 75%. I'll take twenty of those, please.
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I am holding my breath...
by hashnet on Wed 4th Feb 2009 09:05 UTC
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and not (entirely) switching to CFL until then.
I actually have a few CFL, and am very disappointed: not only they don't last much longer than incandescent, and nowhere as advertised, but the quantity of light they emit declines progressively until they fail.

I noticed that when it got harder for me to read in my home office.

15 years ago, I had halogen lamps in every room, super bright. But with the environmental/economic situation, we are slowly going back to the "dark ages".

I hope these LED bulbs reverse the trend and become ubiquitous.
The next step would be to make sheets of these, to apply them on walls or ceilings for diffuse yet powerful lighting.

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