Appalachian Lighting In The News
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December 20, 2011
ALLED® CL Series helps garage owners and operators save 90 percent on lighting costs.
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October 7, 2011
Appalachian Lighting introduces the ALLED SL4 LED-based street light with integrated network and control technology.
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October 5, 2011
Appalachian Lighting’s New ALLED® SL4 LED Street Light Makes Switching to LED a ‘No-Brainer’ for Any Municipality.
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The ALSI Advantage
Frequently Asked Questions
What is an LED?
LED is short for Light-Emitting Diode. An LED is a semiconductor diode that emits light when current is passed through it.
Where are LEDs used to provide lighting?
LEDs are used for general illumination, aesthetic, effect, or specialty lighting applications, including architectural highlighting. Traffic lights and exit signs also now use red, yellow, green or blue LEDs.
What are the advantages of using LED lights?
- LEDs yield very high energy-efficiency, ruggedness, and superior life, as compared to other light sources.
- Required maintenance on such correctly designed fixtures is greatly reduced.
- Energy savings and maintenance savings combine to yield an overall reduction in cost of ownership, as compared to other light sources.
- LED lights are “green” in that they utilize no hazardous materials. Mercury is a bi-product of a significant number of non LED lights on the market today. Disposal of such fixtures has become a significant environmental problem.
How does one evaluate LED products?
For additional help in comparing ALSI products to other LED products, refer to our Design & Operational Parameter Chart
If a fixture is rated for 100,000 hours how long will it last?
Operational life is calculated based on how long a fixture is illuminated per day:
- Operating the luminaire 24 hours per day yields 11.4 years of operational life.
- Operating the luminaire 18 hours per day yields 14.8 years of operational life.
- Operating the luminaire 12 hours per day yields 22.8 years of operational life.
- Operating the luminaire 8 hours per day yields 34.2 years of operational life.