Lighting Glossary
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Nanometer
A unit of wavelength equal to one billionth of a meter.
National Electric Code (NEC)
A nationally accepted electrical installation code developed by the National Fire Protection Association to reduce the risk of fire.
National Energy Standards for Fluorescent Ballasts
A federal law enacted in 1988 that sets energy standards for ballasts consistent throughout the United States.
Non-PCB Capacitor
Capacitor used in ballasts to help provide power factor correction.
Normal Power Factor
Ballast in which the power factor is less than 0.80 (80%). These ballasts require about twice the line current of high power factor ballasts.
National Electrical Manufacturers Association (NEMA)
U.S. based association that sets many common standards used in electrical products
Normal Light Output
Ballast with a nominal ballast factor of 0.88 for most T8 ballasts, and 1.00 for most T5 and dimming ballasts.
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