Compact fluorescent lamps (CFLs) have become required in recent years, but do they make financial sense? Suppose a typical 60-watt incandescent lightbulb costs $.38 and lasts for 1,000 hours. A 15-watt CFL, which provides the same light, costs $3.05 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $0.114 which is about the national average. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 9 percent and use a light fixture 500 hours per year, what is the equivalent annual cost of each light bulb?
equivalent annual cost | |
60-watt incandescent light |
$ |
Compact fluorescence lamps |
$ |
Compact fluorescent lamps (CFLs) have become required in recent years, but do they make financial sense?...
Compact fluorescent lamps (CFLs) have become required in recent years, but do they make financial sense? Suppose a typical 60-watt incandescent light bulb costs $.46 and lasts 1,000 hours. A 15-watt CFL, which provides the same light, costs $3.45 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.122, which is about the national average. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 11 percent and use a light fixture 500 hours per...
Compact fluorescent lamps (CFLs) have become required in recent years, but do they make financial sense? Suppose a typical 60-watt incandescent lightbulb costs $.52 and lasts for 1,000 hours. A 15-watt CFL, which provides the same light, costs $3.75 and lasts for 12,000 hours. A kilowatt hour of electricity costs $.128, which is about the national average. A kilowatt-hour is 1,000 watts for 1 hour. However, electricity costs actually vary quite a bit depending on location and user type. An...
Light-emitting diode (LED) light bulbs have become required in recent years, but do they make financial sense? Suppose a typical 60-watt incandescent bulb costs $.45 and lasts for 1,000 hours. A 7-watt LED, which provides the same light, costs $2.25 and lasts for 40,000 hours. A kilowatt-hour of electricity costs $.121, which is about the national average. A kilowatt-hour is 1,000 watts for 1 hour. If you require a 10 percent return and use a light fixture 500 hours per...
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 $.51 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $3.70 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.127. 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...
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 $.35 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $2.90 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.111. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 9 percent and use a light fixture 500 hours per year, what is the...
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 $.43 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $3.30 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.119. 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...
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 $.47 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $3.50 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.123. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 9 percent and use a light fixture 500 hours per year, what is the...
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 $.49 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $3.60 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.125. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 11 percent and use a light fixture 500 hours per year, what is the...
I need solution 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 $.42 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $3.25 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $118. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 11 percent and use a light fixture 500 hours per year,...
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 $.53 and lasts 1,000 hours. A 15-watt LED, which provides the same light, costs $3.80 and lasts for 12,000 hours. A kilowatt-hour of electricity costs $.129. A kilowatt-hour is 1,000 watts for 1 hour. If you require a return of 9 percent and use a light fixture 500 hours per year, what is the...