A distribution is classified as Type III - Asymmetric when the 50% maximum candela trace lies within 2.75 MH (Mounting Height) on the street side of the reference line.
A distribution is classified as Type V - Square when the 50% maximum candela is symmetric in all four quadrants.
A distribution is classified as Type V - Round when it has circular symmetry, being essentially the same at all lateral angles around the luminaire.
See examples of Nightsky Friendly products Sternberg carries.
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