J2938_202405 LED Light Sources Tests and Requirements Standard

Revised

05/16/2024

Features
Issuing Committee
Scope
Content
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.
Rationale
Content
ANSI/IES LM-80, ANSI/IES TM-21, and ANSI/IES LM-85 are normative references for this document. With ANSI/IES documents being updated, this SAE document shall be reviewed and updated accordingly.
Document changes include:
  • Added section 2.1.5 reference ASTM E230/E230M-17.
  • Revised section 3.5 definition for luminous flux maintenance.
  • Removed previous section 3.6, based on the latest version of ANSI/IES LM-80 document. The content is moved to section 5.3.7.
  • Revised section 3.7 definition for temperature measurement point (TMP).
  • Added section 4.4 Sample Handling.
  • Section 5 Tests has been rearranged without changing the overall contents. The flow of the section is: 5.1 Enviromental Conditions, 5.2 Electrical Conditions, 5.3 Maintenance Test and Measurement Procedures, and 5.4 Test Report. The section rearrangments aid in making the document easier to understand.
Meta TagsDetails
DOI
https://doi.org/10.4271/J2938_202405
Pages
7
Citation
SAE International Recommended Practice, LED Light Sources Tests and Requirements Standard, SAE Standard J2938_202405, Revised May 2024, Issued February 2012, https://doi.org/10.4271/J2938_202405.
Additional Details
Publisher
Published
May 16
Product Code
J2938_202405
Content Type
Recommended Practice
Status
Revised
Language
English

Revisions