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Replacing energy-wasting lightbulbs with new efficient ones will certainly save you money but proper maintenance is also key to lighting efficiency. Light levels decrease over time because of aging lightbulbs and dirt on fixtures, bulbs and room surfaces. Together, these factors can reduce total illumination by 50 percent or more, while lights continue drawing full power.
The Energy Savers website, run by the Department of Energy, recommends taking the following basic maintenance steps to help keep your lights operating at their optimum energy efficiency:
—Mary H.J. Farrell
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