A major challenge in the design of in-grade fixtures is the removal of heat to protect components and provide lower lens temperatures. When the potential exists for direct human contact with lenses, care is required to protect pedestrians from injury. The Paradox™ Architectural In-grade Cool Lens model utilizes a combination brass top ring heat sink and reflective secondary IR lens filter to reduce heat by 50% when necessary. As with the use of all luminaires in pedestrian areas, Hydrel recommends that the proper care be taken in the selection of luminaire location, lamp wattage and distribution, in order to minimize pedestrian risk.