How is LED lighting different from other energy efficient lighting technologies?

LEDs offer the potential to cut general lighting energy use by one-fifth saving energy Pounds, Euros and Dollars and carbon emissions in the process.

Their unique characteristics include:

  • compact size
  • long life
  • minimal maintenance
  • resistance to breakage
  • resistance to vibration
  • good performance in cold temperatures
  • lack of infrared or ultraviolet emissions
  • instant-on performance
  • full dimming capability

Another defining feature of LEDs is that they emit light in a specific direction. Since directional lighting reduces the need for reflectors and diffusers that can trap light, well-designed LED fixtures can deliver light efficiently to the intended location. In contrast, fluorescent and halogen lamps emit light in all directions and much of the light produced by the lamp can be lost within the fixture be reabsorbed by the lamp of can escape from the fixture in a direction that is not useful for the intended application.

For many fixture types including recessed downlights, troffers and under cabinet fixtures, it is not uncommon for up to 40 to 50% of the total light output of fluorescent and halogen lamps to be lost or reduced in efficiency with reflection losses before the light exits the fixture.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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