LED lightbulbs are some of the most efficient, long-lasting bulbs around, since they use a fraction of the energy of conventional bulbs and can last up to 20 years. But they can also be expensive. So choose the five light fixtures you use the most at home, and replace those bulbs with LEDs. According to the Environmental Protection Agency, this one switch will reduce electricity usage in those fixtures by 75 percent, and it gives you the potential to recoup about $70 a year in electricity savings.
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