LED Industry Standards from IESNA

LM-79 and LM-80 IESNA Standards

LM-79 and LM-80 are two standards drafted by the Illuminating Engineering Society of North America (IESNA) to measure LED performance.

LM-79

LM-79 specifies procedures for measuring electrical and photometric data such as

    Total lumen flux

    Electrical power

    Efficacy

    and other factors.

LM-80

LM-80 specifies procedures for determining lumen depreciation of LEDs related to the life of the product.