Anatomy of the Label
The LED Lighting Facts label available for download:
Anatomy of the LED Lighting Facts® Label
- 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.
- 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.
- 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).
- If a label indicates that 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.