LED Bulb

Question Text

A more sustainable alternative to CFL bulbs and incandescent bulbs are light-emitting diode (LED) bulbs. A 100-W incandescent bulb can be replaced by a 16-W LED bulb. Both produce 1600 lumens of light.

Assuming the cost of electricity is \(\rm\ {\)}0.57$ per kilowatt-hour, how much does it cost to run the LED bulb for one year if it runs for 21 hours a day?

Answer Section

Attribution

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.