The electric usage of LED is 8 watts and incandescent bulbs take
up 40 watts. The...
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Chemistry
The electric usage of LED is 8 watts and incandescent bulbs takeup 40 watts. The lifetime of LED bulbs is 25 000 hours and thelifetime for incandescent bulb is 2500 hours. How much energy couldbe saved each year by replacing incandescent bulbs with LED bulbs?Assume that six 40-watt lamps arer lit an average of three hours anight and they are each replaces with 8 watt LED-bulbs.
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time in a year in hr365 24 hrs8760 hrs As the lifetime for incandescent bulb is 2500 hours so no of bulbs required each year
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