LED Lighting

What technology has been revolutionary in the past quarter century? Many ways of looking at this. Even defining "technology" and "revolutionary" might be debatable.

LED lighting
http://en.wikipedia.org/wiki/LED_lamp
(and even CFL when well implemented)
http://en.wikipedia.org/wiki/Compact_fluorescent_lamp
are amazing.

LED bulbs are available at Home Depot, Lowes and Walmart. Such technology at retail here and now is amazing.

Even simple holiday lights are amazing. Can get at CVS a string of 60 warm white lights (string handles heat and light distribution) that consume about 4W (total) and put out about 400 lumens (total - like a 40W bulb). They twinkle a bit, but not a major annoyance. Thinking of supplementing lighting in basement and attic with LED strings.

"The Future of Light Is the LED"
By Dan Koeppel August 19, 2011 12:53 pm Wired September 2011
http://www.wired.com/magazine/2011/08/ff_lightbulbs/all/1

Article Points:
Brett Sharenow, CFO, Switch demos LED bulb. New regulations on light bulb efficiency upcoming. 100/60 watt race. Haitz law: x20 light /10 cost per decade. CFL problems. The L Prize (short for Bright Tomorrow Lighting Prize). LED history. Heat transfer (new idea) via fluid. History of Switch. Developments by others.

Sidebar: battle of bulbs (6) including:
+ Philips Ambientled - The first commercially available 60-watt-equivalent LED.
+ Switch60 Warm White