The angled profile of the Universal Extrusion requires 3/4″ clearance along each of a 90 degree corner. Use for applications such as accent lighting, display shelving and cases, as well as niche and exterior lighting. Choose from frosted UV resistant/flame retardant or 10 degree clear focusing lens, both made of high polycarbonate material. Use end caps made of durable polypropylene to finish the look. Standard assembly offers IP20 protection; Use a neutral silicone sealant at each end and along each side of lens for IP65 rating.