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EPA guidance on LED and lamp verification testing for Energy Star

EPA guidance on LED and lamp verification testing for Energy Star

By BizLED Bureau

May 21, 2015: Environmental Protection Agency (EPA), USA, has released a guidance document to guide certification bodies (CBs) regarding implementation of verification testing of lamps, including LED-based products that are certified with Energy Star V1.0 and V1.1 specifications.

The guidelines include test that are randomly-selected and made mandatory. It also specifies some limited cases in which verification testing may differ from the original certification testing.

EPA took some time finalizing the Lamps V1.1 specification guidelines. The document includes some changes from the Lamps V1.0 specification released in 2013. Now, lamps can be tested as per any of the documents. Currently, EPA is working on the next specification for lamps.

The process for Energy Star requires that a product first pass the certification testing. Then, CBs are required to perform verification tests on certified lamps at annual intervals.

EPA has instructed that certification testing should include some applicable core performance tests like:


  • Light output or center beam intensity (verify for equivalency claim)
  • Light output ratio (Directional lamps only)
  • Luminous intensity distribution (Omnidirectional and Decorative LED lamps only)
  • Correlated color temperature
  • Color rendering index
  • Color maintenance (LED lamps only)
  • Color angular uniformity (Directional LED lamps only)
  • Lumen maintenance (1000 hours for CFLs, 3000 hours for LED lamps)
  • Rated life (observation of operational units after 4000 hours of operation)
  • Run up time (covered CFLs only)
  • Rapid cycle stress test
  • In-situ temperature test (LED lamps that utilized early certification only)
  • In addition, CBs are required to randomly select two additional tests from the following list:


  • Transient protection*
  • Start time*
  • Run up time* (bare CFLs only)
  • Power factor*

Dimensional requirements

Lumen maintenance tests can take place at 4000-hour point but 90% of the tested products have to pass the test. The guidance document states a procedure for establishing the test temperature for lifetime and lumen maintenance tests.

Source: EPA

For more info: http://www.epa.gov/

None of the facts and figures mentioned in the story have been created by BizLED.co.in. BizLED is not responsible for any factual errors. The facts and figures have been shared by expert on LED technology.

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