1. A light-emitting diode (LED) is a semiconductor light source. LED’s are used as indicator  lamps in many devices and are increasingly used for lighting.

2. Compared to a 40-watt incandescent bulb, LED bulbs use only 3 to 4 watts of energy.

3. LED light bulbs generally last 30 times longer than incandescent bulbs.

4. LED light bulbs are generally 12 times more efficient than incandescent bulbs.

5. Considering that a quarter of a home’s cost for electricity is for lighting, you can save a great deal of money by using LED lighting.

6. LED light bulbs generally last over twenty thousand hours, whereas incandescent lights generally last less than two thousand hours.

7. LED lights are initially expensive. It may cost $12 these days to replace a 25-watt incandescent bulb with an LED bulb, but LED lighting is easier to maintain [less labor intensive] and the cost is recouped over a relatively short period of time in electricity saved.

8. LED lights have a record of being 80% efficient. LED lights can burn for a decade, saving energy.

9. LED lighting is used in headlights, flashlights, traffic lights, and outdoor signs because it is cost-effective for companies and cities.

10. In 2009, 74 percent of consumers switched to energy-efficient lighting, including 12 percent that switched over to LED lighting.

11. In 2012, 100-watt incandescent bulbs will be phased out, and by 2014, 40-watt and 60-watt incandescent bulbs will no longer be available.

1. LED lighting generally lasts 4 times longer than florescent lighting.

2. LED lights come in smaller fixtures, which can be used in many more places.

3. LED lights contain no mercury. If a florescent light implodes, mercury is released into the environment.

4. Many florescent lighting installations can be complex processes requiring professionals. However, LED lights have a smaller form factor and lack ballasts and transformers, making installations easier and cheaper.

5. Both florescent lights and cheap LED lights can emit a harsh light because they don’t have a full spectrum band width. However, cutting edge technology today has designed quality LED lights which produce a near incandescent light spectrum.

6. Florescent lights can flicker, causing discomfort to users.

7. Dimmable LED lighting is available today. LED lighting comes in a variety of light renditions with a full spectrum of rich and vibrant colors.

8. Quality LED lights emit no harmful UV rays.