Anatomy of the Label

The LED Lighting Facts label available for download:

Anatomy of the LED Lighting Facts Label

The Anatomy of the Lighting Facts Label

Light Output/Lumens
  • Measures light output. The higher the number, the more light is emitted.
  • Reported as “Total Integrated Flux (Lumens)” on LM-79 test report.
  • Measures energy required to light the product. The lower the wattage, the less energy used.
  • Reported as “Input Power (Watts)” on LM-79 test report.
Lumens per Watt/Efficacy
  • Measures efficiency. The higher the number, the more efficient the product.
  • Reported as “Efficacy” on LM-79 test report.
IESNA LM-79-2008
  • Industry standardized test procedure that measures performance qualities of LED luminaires and integral lamps.
  • Allows for a true comparison of luminaires regardless of the light source.
LED Lumen Maintenance*
  • Listed as a percentage, this metric estimates the amount of light the LED light source is projected to emit at 25,000 hours at a given ambient test temperature, compared to its initial light output. This percentage is based on LM-80, in-situ performance, and TM-21 projections.
Model Number
  • Unique manufacturer’s model number for the product.
  • Specific type of solid-state lighting fixture.
  • The brand under which each product is available.
Color Rendering Index (CRI)
  • Measures color accuracy.
  • Color rendition is the effect of the lamp’s light spectrum on the color appearance of objects.
Correlated Color Temperature (CCT)
  • Measures light color.
  • “Cool” colors have higher Kelvin temperatures (3600–5500 K).
  •  “Warm” colors have lower color temperatures (2700–3500 K).
Product Warranty
  • The product has a warranty, a URL with more information has been verified by the program and is available from the product summary.

*Can be added when downloading labels.