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Lighting Systems Index

​​The NEMA Lighting Systems Index is a composite measure of NEMA Member companies’ U.S. shipments of a variety of lighting products, including lamps, luminaires, ballasts, emergency lighting, and exit signs, and is designed to track underlying demand for these types of equipment. Product shipments data are drawn from statistical surveys conducted regularly by NEMA and are adjusted for inflation and regularly recurring seasonal fluctuations.

For more information, e-mail NEMA​ Business Information Services

Lighting System Index Chart ​


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