Led light output compared to incandescent

Updated July 19, 2017

LED light bulbs generate more light than incandescent bulbs, and do so with less wattage, making them an energy-efficient alternative to traditional light bulbs.


The amount of light given off by a light bulb is measured in lumens, and LED light bulbs give off more lumens per watt than any traditional incandescent light. According to the Madison Wisconsin Gas and Electric company, LED bulbs generate 20 to 60 lumens per watt, while incandescent bulbs only generate 10 to 17 lumens per watt.


Because LED lights are far more efficient than incandescent lights, an LED bulb uses far less wattage than an incandescent bulb, all while generating the same number of lumens. A 3-watt LED bulb can generate the same amount of light as a 45-watt incandescent bulb.

Heat and Efficiency

Incandescent bulbs generate heat as well as light, which cuts down on both their lifespan and efficiency. An LED bulb generates almost no heat, while generating plenty of light. They also last years longer than incandescent bulbs, cutting down on replacement costs.

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About the Author

Residing in Pittsburgh, Pa., James Red has been a writer for over 10 years. He has work appearing in various magazines, newsweeklies and popular websites including "Wizard Magazine," "Big Shot" and He holds a bachelor's degree in journalism from Point Park University and another in film studies from Bowling Green State University.