One of the most important standards in the lighting industry is LM-79 that defines the electrical and photometric test methods for most LED lamps and fixtures. The IES has updated ANSI/IES LM-79-24 Approved Method: Optical and Electrical Measurements of Solid-State Lighting Products.
Changes have been made to update information and provide better guidance based on information gathered from proficiency testing associated with laboratory accreditation and independent research. The updated requirements in this test method are intended to reduce the variation of measurement results across testing laboratories while minimizing the burden on the testing laboratories. The method is based on absolute photometry addressing the requirements for optical and electrical measurement of solid-state lighting products.
The updated standard was not yet on the IES webstore, as of 6/26/24.
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GTG Group can perform LM-79 performance testing and issue the test report with accurate test data. Interested in learning more? Please 短いフォームに記入してください弊社の専門家が喜んでお手伝いいたします。