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LED uses 10% energy of incandescent light bulbs and have no mercury.
An LED retrofit will instantly cut lighting electrical costs by 50-80% off existing lights. LED lighting pays for itself within 6 months to 2 years, then for the next 20 years all of the energy saved goes to the bottom line.
LED's are now the most efficient commercial light source on the planet. They are 10 times more efficient than incandescent bulbs and more than twice as efficient as fluorescent bulbs. When the reduced maintenance and replacement costs are considered, LED's can save typically 80% on lighting costs.
More than half of energy for lighting is consumed in the commercial sector due to the fact that lighting is used most during periods of peak electrical demand and also contributes to a building's internal heat generation, which then ups air-conditioning load, according to the DOE.
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