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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.
Watts
- 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.
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Model Number
- Unique manufacturer's model number for the product.
Type
- Specific type of solid-state lighting fixture.
Brand
- 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).
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