How much does it cost to use a light bulb?

Answer

The cost of using a 100-watt light bulb for 24 hours is 21 cents, whereas a compact fluorescent light costs 4 cents for 24 hours, according to an example from the city of Thief River Falls. These figures assume a cost of 10 cents per kilowatt-hour for electricity.

With over 50,000 hours of usage, a 60-watt incandescent bulb costs $300 in power at 10 cents per kilowatt-hour. A CFL uses $70.83 worth of power over the same span and an LED light costs $39.58, according to Energy Use Calculator. Energy Star's calculating tool determines how much power certain light bulbs cost to keep lit.

Explore this Topic
The cost of running a 100 watt light bulb is easy to calculate. First, if you run a 100 watt light bulb for 10 hours, you would use 1000 watts of power, or the ...
It cost about $100 a year to run a 100 watt bulb for a year. If you turn the light bulb out during the day it will cost only about $50 a year. So if you use several ...
Light bulbs are a staple in society today. The different styles of light bulbs range from cheap to expensive depending on the brand. When the first light bulbs ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com