| LM‐79 | Testing standards for performance characteristics of LED lamps and luminaires. |
| LM‐80 | Testing standards for the lumen maintenance for LED packages and arrays. |
| Ingress Protection (IP) Ratings | Measurement of environmental protection for electronic equipment. Utilizes two numbers. First Digit rates ingress of solid objects. Second digit rates ingress of liquids. |
| Color Rendering Index (CRI) | A Measure of a light source's ability to show colors accurately. The Scale is from 1 to 100. The sun is considered 100. |
| Color Temperature | Correlated Color Temperature (CCT). A measurement of the hue of the light produced by a source. |
| Center Beam Candle Power (CBCP) | Luminous intensity at the center of a light source beam. |
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