This discontinuity was highlighted at the "LEDs: Meeting the Design and Performance Challenges" conference, which was held in London, UK, in late January 2004.
Although there are many benefits associated with using LEDs for lighting applications, there are also many issues to resolve.
* See Challenges and benefits of LED lighting
Speakers and panelists kept returning to the issue of standards.
* See Metrics and standards
One issue raised frequently by lighting designers is the variation in color within batches of white LEDs. The human eye is highly sensitive to differences in hue, and can also perceive differences in intensity as a difference in color.
* See Color variation
Effective heat sinking is a key factor in ensuring stable LED performance over a long lifetime. The LED junction temperature influences the luminous flux of the device, its lifetime, its wavelength and it efficacy.
* See Thermal management
The full version of this article can be viewed on the Compound Semiconductor magazine website.