We are doing external lighting simulation for factory building. We are using 250W street light fitting (10nos) and there is no other type of lights. Our strategy is to provide optimum lux level & uniformity on road surface. So that we have given the tilt angle of 20deg for all light fittings. Because of this angle, the total upward ratio is exceeding more 5% (which has calculated by lighting software). But as per the photometric property, ULR is 2.5% without considering the tilt angle. Our doubt is which one has to be considered for LEED Submission whether ULR considering tilt angle or ULR without considering tilt angle. Please reply... Is there any strategies to reduce ULR to below 5% without changing the light fittings & tilt angle.
Mechanical Engineer
LEEDuser Basic Member
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