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CALiPER Testing

The CALiPER (Commercially Available LED Product Evaluation and Reporting) program was launched by DOE in 2006 to address a need for unbiased, trusted product performance information in the early years of SSL. CALiPER testing and analysis, conducted by accredited test labs using industry-standard test procedures, helped to discourage low-quality products and inflated manufacturer claims. As a result, there are far fewer exaggerated performance claims today, and product quality has vastly improved. Still, technological issues with today’s SSL products continue to hamper widespread adoption, and CALiPER investigations reveal issues with reliability, color quality and stability, dimming, flicker, and glare. The program has evolved right along with the SSL market and expanded its focus to investigate specific product types and scenarios. It remains a useful tool for manufacturers seeking to improve their products, and for buyers seeking to make informed decisions.

Product Testing and Reporting

CALiPER testing results, summaries, and analyses are widely shared via reports, webinars, videos, presentations, and other means.

  • Application Reports focus on specific product types and design scenarios, offering comparative analysis that puts LED performance in context relative to the overall lighting industry and benchmark technologies. This approach serves to educate the industry on market trends, potential issues, and important areas for improvement.
  • Snapshot Reports use data from the LED Lighting Facts® product list to compare SSL performance to standard lighting technologies, and are designed to help retailers, distributors, designers, utilities, energy efficiency programs, and other stakeholders understand the current state of the LED market and its trajectory.

Standards Development Support

CALiPER test results and analysis are used to support the development of standards and test procedures for SSL – especially those related to complex areas such as flicker, dimming, power quality, and long-term performance. In addition, DOE hosts annual CALiPER roundtables – attended by representatives from industry, independent test laboratories, and key standards-setting groups – to solicit input on test results and procedures and additional testing needs for SSL.