LEDs promise brighter future, not necessarily greener

Solid-state lighting pioneers long have held that replacing the inefficient Edison light bulb with more efficient solid-state light-emitting devices (LEDs) would lower electrical usage worldwide, not only "greenly" decreasing the need for new power plants but even permitting some to be decommissioned. But, in a new paper, leading LED researchers argue for a shift in that view. But, in a paper published Thursday in the Journal of Physics D, leading LED researchers from Sandia National Laboratories argue for a shift in that view.

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