Fans of L.E.D.’s Say This Bulb’s Time Has Come - NYTimes.com:
"Sentry spent $12,000 more than the $6,000 needed to light the facility with a mixture of incandescent and fluorescent bulbs. But using L.E.D.’s, the company is saving $7,000 a year in energy costs, will not need to change a bulb for 20 years and will recoup its additional investment in less than two years.
“I’d do it again,” Mr. Farrell said. “It was a no-brainer.”"
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