National Electrical Manufacturers Association(NEMA)
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NEMA LE 5-2001
NEMA LE 5-2001 history
2001NEMA LE 5-2001 Procedure for Determining Luminaire Efficacy Ratings for Fluorescent Luminaires (Scope for Additional Partially Replaced Information)
1995NEMA LE 5-1995 Procedure for Determining Luminaire Efficacy Ratings for Fluorescent Luminaires
1993NEMA LE 5-1993 Procedure for Determining Luminaire Efficacy Ratings for Fluorescent Luminaires