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  • Search Measurement Standards

Found

Details

LM-85-14
IES Approved Method for Electrical & Photometric Measurements of High Power LEDs
LM-9-09
Electrical and Photometric Measurements of Fluorescent Lamps
LM-46-04
Photometric Testing of Indoor Luminaires Using High Intensity Discharge or Incandescent Filament Lam
LM-62-06
Laboratory or Field Thermal Measurements of Fluorescent Lamps and Ballasts in Luminaires, Reaffirmed
LM-76-02
Photometric Testing of Fiber Optics Lighting Systems (Reaffirmed 2008)
LM-78-07
Approved Method for Total Luminous Flux Measurement of Lamps Using an Integrating Sphere Photometer
LM-77-09
Intensity Distribution Measurement of Luminaires and Lamps Using Digital Screen Imaging Photometry
LM-81-10
Photometric Testing of Skylights and Tubular Daylighting Devices under Hemispherical Sky Conditions
LM-51-13
Electrical and Photometric Measurement of High Intensity Discharge Lamps
LM-84-14
IES Approved Method for Measuring Luminous Flux and Color Maintenance of LED Lamps, Light Engines, a
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LM-84-14
01-Jan-2014
IES Approved Method for Measuring Luminous Flux and Color Maintenance of LED Lamps, Light Engines, a
This document provides the method for measurement of luminous flux and color maintenance of LED lamps, integrated; LED lamps, non-integrated; LED light engines, and LED luminaires. The method describes the procedures to be followed and the precautions to be observed in obtaining and reproducing luminous flux and color maintenance measurements under standard operating conditions. This approved method does not provide guidance or recommendations regarding sampling, predictive estimations or extrapolation of luminous flux maintenance beyond the final measurement.
 
Contents
Scope
Normative References
Definitions
Physical and Environmental Conditions
Electrical Conditions
Photometric and Thermal Measurement Procedure
Maintenance Test Procedures
Test Report
Annex A Recommendations for Measurement of In-Situ Conditions LED Case Temperature, Ts
Annex B Rationale for not describing Maintenance Test Duration and Measurement Intervals
Annex C Checking and Recording Non-Operational DUTs During Maintenance Test
Informative References

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