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LED is a highly energy-efficient lighting technology, and has the potential to fundamentally change the future of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least 75% less energy, and last up to 25 times longer, than incandescent lighting.
LED lighting is already the most energy-efficient lighting technology, with efficacies ranging up to 150 lumens per watt or more in some specialized instances. But there still remains considerable room for efficacy improvement and widespread deployment of more efficacious products.
Although once known mainly for indicator and traffic lights, LEDs in white light, general illumination applications are today's most energy-efficient and rapidly-developing lighting technology. LEDs use up to 90% less energy and last up to 25 times longer than traditional incandescent bulbs.
LEDs use up to 90% less energy and last up to 25 times longer than incandescent bulbs. Most LEDs are also dimmable. LED lighting products use light-emitting diodes to produce light very eficiently. An LED can last up to four times longer than a CFL, and unlike CFLs or incandescent bulb, LEDs are cool to the touch.
The energy efficiency of LED products is typically characterized using efficacy, which in basic terms is the ratio of power input to light output—or more technically, emitted flux (lumens) divided by power draw (watts).1 For such a simple concept, however, there are several important nuances that must not be overlooked.
Learn how to reduce energy use from lighting and choose energy efficient light bulbs, as well as why it pays to make energy efficient lighting choices. This fact sheet from Energy Saver includes information on the history of lighting, today's LED lights and how to choose the best ones for your needs, and how to reduce your energy use from lighting.
Today’s LEDs. LED lighting is gaining in popularity and availability. LEDs are more eficient and provide higher quality than even CFLs. LEDs use at least 75 percent less energy than incandescent bulbs, emit virtually no heat, and last 25 times longer. LEDs are also dimmable.
The latest edition of the DOE report, Adoption of Light-Emitting Diodes in Common Lighting Applications, models the current state of the U.S. general-lighting market and provides analysis on realized and potential energy- and money-saving benefits associated with LED lamps and luminaires.
At home, you can save money on energy bills by making energy-efficient and weatherization upgrades—such as adding insulation, using LED lighting, and installing a heat pump—that reduce your energy use and can improve comfort.
The DOE LED Lighting Facts effort paved the way for the mandatory Federal Trade Commission (FTC) label required for most general service lamps (including incandescent, compact fluorescent, and LED light bulbs).