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Standard

LED Light Sources Tests and Requirements Standard

2022-10-04
WIP
J2938
This SAE Recommended Practice provides the methods of measurements for electrical and photometric characteristics of LED packages. It provides procedures, requirements, and guidelines for the methods of the measurement of luminous flux and color maintenance of LED devices (packages, arrays, and modules) for ground vehicle lighting applications.
Standard

LED Light Sources Tests and Requirements Standard

2017-09-15
CURRENT
J2938_201709
This SAE Recommended Practice provides the methods of measurements for electrical and photometric characteristics of LED packages. It provides procedures, requirements, and guidelines for the methods of the measurement of luminous flux and color maintenance of LED devices (packages, arrays, and modules) for ground vehicle lighting applications.
Standard

LED Light Sources Tests and Requirements Standard Part 2: LED Lumen and Color Maintenance Measurements

2012-02-15
HISTORICAL
J2938_201202
This SAE Recommended Practice provides test procedures, requirements, and guidelines for the methods of the measurement of lumen maintenance of LED devices (packages, arrays and modules). This document does not provide guidance or make any recommendation regarding predictive estimations or extrapolation for lumen maintenance beyond the limits of the lumen maintenance determined from actual measurements.
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