本文件描述了在准确测量大功率发光二极管（LED）的总光通量、总辐射通量（光功率）、总光子通量、电功率、光效、色量和波长特性（包括白色LED和单色LED）时应遵循的程序和应遵守的注意事项。它涵盖LED封装，包括带有多个芯片和远程荧光LED封装的封装。它还包括LED阵列或模块，包括远程荧光LED阵列或模块。本文件涵盖了LED在脉冲操作和稳定直流操作下的测量，在所有情况下，LED的热状态指的是其结温。 本批准方法适用于实验室测量。

This document describes the procedures to be followed and precautions to be observed in performing accurate measurements of total luminous flux, total radiant flux (optical power), total photon flux, electrical power, luminous efficacy, color quantities, and wavelength characteristics of high-power light emitting diodes (LEDs), including white LEDs and single-color LEDs. It covers LED packages, including those with multiple chips and remote-phosphor LED packages. It also covers LED arrays or modules including remote-phosphor LED arrays or modules. This document covers measurement under pulse operation as well as steady DC operation of LEDs, and in all cases, thethermal conditionof LEDs refers to their junction temperature. This Approved Method applies to laboratory measurements.