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Business, 12.11.2019 07:31 kenleighbrooke67

Light emitting diodes (led) light bulbs have become required in recent years, but do they make financial sense? suppose a typical 60-watt incandescent light bulb costs $.37 and lasts 1,000 hours. a 15-watt led, which provides the same light, costs $3.00 and lasts for 12,000 hours. a kilowatt-hour of electricity costs $.113. a kilowatt-hour is 1,000 watts for 1 hour. if you require a return of 10 percent and use a light fixture 500 hours per year, what is the equivalent annual cost of each light bulb?

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