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Are LEDs the light bulbs of the future?

The incandescent light bulb has changed very little since the days of Thomas Edison, with 90 percent of the electricity used lost as heat. Consumers have been reluctant to move awa... More The incandescent light bulb has changed very little since the days of Thomas Edison, with 90 percent of the electricity used lost as heat. Consumers have been reluctant to move away from the rich color quality of incandescent bulbs, but experts say new energy-efficient LEDs may finally provide an attractive replacement. John Blackstone reports. Less

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