Optional sensor for Endurance Motion Sensor. The Endurance wall pack collection features a patent-pending design for water and dust proofing, encased in an IP66 rated factory-sealed light engine. Thermally engineered for up to 100,000 hours of rated life, the Endurance virtually eliminates any need for maintenance once installed. LED technology offers superior alternatives to conventional Halogen and HID sources. With factory-sealed die-cast aluminum housings, the Endurance collection is sure to provide lasting worry-free performance for years.