By Dan Shapley
The incandescent bulb, Thomas Edison's century-old invention, is fast falling out of favor, as people wake up to the consequences of indiscriminate electricity use, and compact fluorescent bulbs gain popularity. But the revolution in household lighting may be on the cusp of another technological breakthrough. LED -- light emitting diodes, that is -- are on the verge of breaking out of their stereotypical spot lighting the "on" button on stereos and other electronics. New technological breakthroughs have allowed engineers to produce better white light from these bulbs without being any less stingy with electricity, according to a story in the June 9 Virginian-Pilot.