A brighter design emerges for low-cost, 'greener' LED light bulbs
Washington DC (SPX) Oct 20, 2014 - The phase-out of traditional incandescent bulbs in the U.S. and elsewhere, as well as a growing interest in energy efficiency, has given LED lighting a sales boost. However, that trend could be short-lived as key materials known as rare earth elements become more expensive. Scientists have now designed new materials for making household LED bulbs without using these ingredients. They ... more
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