08.03.15 NEMA Publishes ANSI C78.377-2015 American National Standard for Electric Lamps—Specifications for the Chromaticity of Solid State Lighting (SSL) Products

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ROSSLYN, VA—The National Electrical Manufacturers Association (NEMA) published ANSI C78.377-2015 American National Standard for Electric Lamps—Specifications for the Chromaticity of Solid State Lighting (SSL) Products. This standard specifies the range of white light recommended for general lighting with solid-state products to ensure high-quality white light. It categorizes chromaticity so that accurate descriptions of the white light can be communicated effectively to consumers.

ANSI C78.377 was originally developed in 2011 by the ANSI Accredited Standards Committee (ASC) C78 for Electric Lamps. In this revision, the specifications for nominal correlated color temperature values of 2200 K and 2500 K have been added. This standard also justifies the move from MacAdam ellipses to quadrangles.

NEMA’s Lighting Systems Division, as secretariat of ANSI’s ASC C78 for Electric Lamps, is looking for industry experts in the User and General Interest categories to participate in standards development activities. Contact NEMA at nemalighting@nema.org if you are interested. Please indicate your interest category and your area of expertise.

ANSI C78.377-2015 may be downloaded or purchased in hard copy for $92 on the NEMA website.

The National Electrical Manufacturers Association (NEMA) represents nearly 400 electrical, medical imaging, and radiation therapy manufacturers. Our combined industries account for more than 400,000 American jobs and more than 7,000 facilities across the U.S. Domestic production exceeds $117 billion per year. Our industry is at the forefront on electrical safety, reliability, resilience, efficiency, and energy security.


National Electrical Manufacturers Association


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