Understanding LM-79: The Standard for SSL Product Performance Testing

The IES LM-79 test is the industry standard for measuring the initial performance of complete SSL products, like LED luminaires and lamps. It provides a crucial “snapshot” of key metrics such as light output (lumens), efficiency (lm/W), and color quality (CRI/CCT), creating a fair baseline for comparing products.

Key Facts About LM-79:
  • Measures Complete Products: LM-79 is exclusively for integrated luminaires and lamps, not for individual LED components (packages, modules, or arrays).
  • Provides Initial Performance Data: The test captures a one-time snapshot of performance at the start of the product’s life to establish its baseline characteristics.
  • Does NOT Predict Lifetime: It does not measure lumen depreciation, reliability, or product lifetime over time. This data is derived from other standards like LM-80.

WHO WE ARE AND WHAT WE LOVE TO DO.

Spaces may become experiences thanks to lighting. We alter how people see or respond to structures, settings, and the space around them by harnessing the alluring power of light.