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ANSI/IES LM-9-20 (R2023)

Approved Method: Electrical and Photometric Measurement of Fluorescent Lamps

This Approved Method describes the procedures to be followed and the precautions to be observed in obtaining uniform and reproducible measurements of the electrical and photometric characteristics of fluorescent lamps under standard conditions in 60 Hz, alternating current circuits and under high frequency conditions (reference high frequency circuits are operated at 25 kHz). Single-ended compact fluorescent lamps are covered in LM-66 and are excluded from this procedure.

Illuminating Engineering Society of North America [iesna]

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