Green light: This gallium-indium phosphide LED was fabricated by researchers at the National Renewable Energy Laboratory.

Solar-cell manufacturing techniques could yield LEDs that require 20 percent less energy.

A new approach to fabricating light-emitting diodes (LEDs) could be used to increase their efficiency by 20 percent while yielding higher-quality light than conventional LEDs. Researchers at the National Renewable Energy Laboratory (NREL) in Golden, CO, have demonstrated the approach by making a yellow-green LED that could soon be combined with other colored LEDs to yield white light. The new LED could help replace current, inefficient methods of generating white light…
-Green LEDs Continued

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High power LEDs from Philips Lumileds Lighting Company mounted on a 21 mm star shaped base metal core PCB (image credit: wikipedia)

  LED’s meteoric rise from a status or test light to spacial lighting has been nothing less than astonishing. LED’s (specifically HPLEDs) are emerging as a great new tool in the array of lighting available to the commercial, government and private sectors. As a lighting maintenance contractor, we have had the pleasure installing some of these new fixtures with great effect. The maintenance and energy savings are very attractive attributes when coupled with the right applications.

 We have been told by those pioneering LED technology, that this is the future of lighting. Huge efforts and money have been spent advancing LEDs to the point where they are barely recognizable to it’s predecessors.

 Wikipedia has what we think, a pretty well written resource for those wanting to brush up on the history and direction of LEDs.

“ light-emitting diode (LED) (pronounced /ˌɛl.iːˈdiː/^[1]) is a semiconductor light source. LEDs are used as indicator lamps in many devices, and are increasingly used for lighting. Introduced as a practical electronic component in 1962,^[2] early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness. – Continue

http://en.wikipedia.org/wiki/Light-emitting_diode