LED Basics

• Color Quality of White LEDs (PDF 198 KB)
  Review of basics regarding light and color; summary of the most important color issues related to white light LEDs, including recent advances (2 pages, January 2008)
• Thermal Management of White LEDs (PDF 317 KB)
  Review of the role of heat in LED performance, and methods for managing heat in LED system design (2 pages, April 2007)
• Energy Efficiency of White LEDs (PDF 219 KB)
  Overview of lighting energy efficiency in general, and the rapidly evolving status of white LEDs (2 pages, January 2008)
• Lifetime of White LEDs (PDF 237 KB)
  Overview of lumen depreciation, measurement of LED useful life, and features to look for in evaluating LED products (2 pages, April 2007)
• LED Basics (PDF 191 KB)
  What retailers, energy efficiency advocates, and consumers need to know to make informed buying decisions (2 pages, January 2008)

LED Application Series

• LED Application Series: Recessed Downlights (PDF 237 KB)
  Comparison of the energy and lighting performance of downlights using different light sources (2 pages, January 2008)
• LED Application Series: Portable Desk/Task Lighting (PDF 186 KB)
  Description of LED desk/task lighting application and comparison with fixtures using traditional light sources (2 pages, February 2008)
• LED Application Series: Kitchen Undercabinet Lighting (PDF 175 KB)
  Overview of the advantages and disadvantages of using LEDs in undercabinet lighting products (2 pages, February 2008)
• LED Application Series: Using LEDs to Their Best Advantage (PDF 315 KB)
  Exploration of the unique attributes of LEDs, which may make them the right choice for some applications (4 pages, January 2008)
• LED Application Series: Dimming LEDs (PDF 186 KB)
  Overview of dimming technology and the prospects for dimming LEDs in residential applications (2 pages, February 2008)

LED Measurement Series

• LED Measurement Series: Color Rendering Index and LEDs (PDF 248 KB)
  Discussion of the use of the color rendering index with LEDs, while a revised color quality metric is being developed (2 pages, January 2008)
• LED Measurement Series: Solid State Lighting Standards (PDF 230 KB)
  Review of the key performance and safety standards applicable to LED-based lighting products (2 pages, January 2008)
• LED Measurement Series: Luminaire Efficacy (PDF 181 KB)
  Overview of luminaire efficacy and the technical reasons for its applicability to LED-based lighting fixtures (2 pages, January 2008)