LED
LED stands for light-emitting diode. LEDs are small light sources that become illuminated by the movement of electrons through a semiconductor material. Low-powered LEDs are used to draw attention to something, such as an exit sign, a green power button on a computer or a red blinking light on a video camera. High-powered LEDs are used to illuminate an area.
Not all LEDs are highly efficient and long-lasting. LEDs have been efficient and long lasting as indicator lights in electronics for years, but using LEDs to create stable white light for general lighting presents new challenges. LED lighting products must pass a variety of tests to prove that the products will display high-efficiency characteristics. (Source: Energystar.gov / Photo: Flickr)
Articles about LED
Tue, Dec 20 2011 at 2:30 PM EST
For some, a stocking full of mercury can be just as disappointing as a stocking full of coal. For non-CFL stocking stuffers that still save a bundle of energy, consider LED and halogen lighting options from Sylvania. Wed, Dec 07 2011 at 4:14 PM EST
LEDs happen to be ideal for decorative things like holiday lights, because they burn bright but cool, they last for a very long time and they cost very little to run.Tue, Nov 29 2011 at 12:13 PM EST
The new LED lighting in place at the Starbucks in Times Square mimics the look and feel of old Broadway.Tue, Nov 29 2011 at 9:00 AM EST
For those craving significant energy savings paired with the comfortable curves of an incandescent, your dream bulb est arrivé: The Nostalgic Clear LED from Panasonic. Tue, Nov 22 2011 at 9:30 AM EST
... as it turns out, just one. Eco Hatchery's free Light Bulb Finder app for iPhones and Androids makes the sometimes daunting process of replacing an energy-draining light bulb with a more efficient one a breeze.Fri, Nov 11 2011 at 12:02 PM EST
On Hamburg's waterfront, world-class sustainable architecture has emerged not from lofty green goals but from practical questions like this one: How do you build an office so comfortable that employees want to linger together there?Mon, Nov 07 2011 at 9:30 PM EST
File this one under way too early but worth it: The Home Depot launches its fourth annual incandescent Christmas light trade-in program that lets merry-making decorators save big on new strands of LED holiday lights. Thu, Oct 27 2011 at 7:00 AM EST
A Riverside, Calif., homeowner swaps out incandescent bulbs for energy-saving LEDs for his absolutely bonkers annual Halloween light show, bringing relief to his utility bill but probably not to his neighbors.Tue, Aug 30 2011 at 2:00 PM EST
Lighting Science Group teams up with Indian electronics manufacturer Dixon Technologies to unveil the world's first $15-or-less 60-watt equivalent LED bulb. Tue, Jul 19 2011 at 12:56 PM EST
Take a cringe-inducing walk down memory lane with Cree as the LED innovator highlights — or low-lights, rather —past winners of Cries for Help, a monthly photo contest featuring poorly lit rooms.- 1. Recipes
- 2. Valentine's Day
- 3. Earthquake News
- 4. Nissan Leaf
- 5. Chevy Volt
- 6. Wind Power
- 7. Green Cleaning
- 8. Green Technology
- 9. Apple
- 10. Bicycles
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