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NEMA White Paper Explains the Fluorescent Ballast Rule

03/9/2018 10:00AMSign-up to receive press releases.

ROSSLYN, Va.—Today, the National Electrical Manufacturers Association (NEMA) published a white paper that explains the Fluorescent Ballast Rule and the associated measurement methods, NEMA LSD 66-2017 Understanding the Fluorescent Ballast Rule, EPCA 10 CFR 430.

"This white paper updates a 2012 ballast ruling, which became effective in 2014, and offers historical context for the current use of the ballast luminous efficiency metric," said Ed Thomas, chair of the NEMA Ballast & Driver Section Technical Committee. This revision of LSD 66 contains updated language.

NEMA LSD 66-2017 is available as an electronic download at no cost on the NEMA website.


The National Electrical Manufacturers Association (NEMA) represents nearly 350 electrical equipment and medical imaging manufacturers that make safe, reliable, and efficient products and systems. Our combined industries account for 360,000 American jobs in more than 7,000 facilities covering every state. Our industry produces $106 billion shipments of electrical equipment and medical imaging technologies per year with $36 billion exports.

Press contact:
Tracy Cullen


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