ENERGY EFFICIENCY


According to the data, the CFL produces more light and uses less energy than the incandescent bulb.
Energy Star
Change-A-Light
Change the World |

This is a good example for understanding energy efficiency. In this experiment we took an incandescent light bulb and compared it to a CFL lightbulb. Using the equipment shown below we were able to take measurements of the relevant inputs and outputs. The Watt Meter measured the input. The Light Meter measured the output.

But How Economical is a CFL Bulb?
| |
CFL |
Incandescent |
Cost to Buy |
$3.22 |
$0.24 |
Cost to Own |
$10.80 |
$43.20 |
Based on 12,000 hrs of operation
|