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A lounge measures 18 ft by 10 ft.  It is lit by three, four lamp recessed fluorescent...

A lounge measures 18 ft by 10 ft.  It is lit by three, four lamp recessed fluorescent fixtures.  Each lamp is rated as 32 watts and each fixture has an 18 watt magnetic ballast.  If the lighting is upgraded to the current code which specifies 0.8 w/SF, what is the cost savings per year if the room is occupied 8 hours per day, 5 days a week, 52 weeks per year and electricity cost 13 cents per kwh

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