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July 4, 2022

New CIE Brochure

May 3, 2022

CIE Tutorial Planning

January 21, 2022

IEA 4E SSL Annex issues new report promoting CIE’s new global test standard

The International Energy Agency’s Energy Efficient End-use Equipment (IEA 4E) Solid State Lighting Annex (SSL Annex) organized the 2017 Interlaboratory Comparison (IC 2017) to investigate the level of agreement in measurements of SSL products by various types of goniophotometers including near-field type and source-rotating type, as well as mirror-type goniophotometers which are most commonly used.
 

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