When Will We Switch From Light Bulbs To LEDs?  By Roland
Piquepaille  The holiday season is coming, and you've probably
already bought some lights and decorations for your Christmas
tree, your house or even your street. But did you know that the
market for light bulbs is a $12 to $15 billion one? Now, several
companies making light-emitting diodes (LEDs) want a piece of
this market, claiming that LEDs are more efficient than light
bulbs and could save a staggering $17 billion a year in energy
costs. In "Switching off bulbs for LEDs," the San Jose Mercury
News reports that in ten years, you'll go to your Wal-Mart store
to buy LEDs instead of light bulbs, thanks to fantastic
improvements in performance by the LED industry. And did you
know that each decade since the first LED appeared in 1962,
prices have fallen by a factor of 10 while performance has grown
by a factor of 20? In the world of LED engineers, this is known
as Haitz's Law, named after retired Agilent scientist Roland
Haitz. Read more...  Here are t