On our project we are planning to use luminaires, with greater than 3500 lumen rated outputs, which will be mounted to trees and aimed at a pedestrian bridge below. The luminaires we intend to use are spotlights equipped with extended shields. A product representative told us that these luminaires would meet IESNA Full Cutoff Classification except that they are mounted on swivel brackets. Provided that we aim these luminaires at an appropriate downward angle (let\'s say 33 degs above horizontal as a worst case scenario)would we have a problem meeting the LEED light pollution credit? Additionally, we are planning to use a second type of luminaire with an 1800 lumen rated lamp. For this luminaire, a very small percentage of the candlepower distribution curve is above the 90 deg line; however, at the property line, its illuminance level should be less than 0.05 footcandles. Would this be considered "appropriately shielded" for an E2: Low Ambient Brightness environmental zone?
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