Cutoff Luminaire

Final

IESNA classification that describes a luminaire having a light distribution in which the candela per 1,000 lamp lumens does not numerically exceed 25 (2.5%) at or above an an angle of 90° above nadir (the angle pointing directly downward from the luminaire, or 0°) and 100 (10%) at or above nadir. This applies to all lateral angles around the luminaire.

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