The YR-PL670D LED shoebox lights provide an affordable and sustainable lighting solution for parking lots, auto dealerships and other open area applications. Designed to deliver high lumen packages with precise optical control for retrofit and new construction projects, the ETL listed and DLC qualified LED luminaire blends form and function together in an exceptionally robust construction to make its the premier outdoor lighting fixture for applications where reliability and performance are critical while the significant savings on energy and maintenance cost is equally important. The classic lines, low-profile design and sophisticated construction of YR-PL670D LED shoebox lights incorporate the latest in LED technology and Yaorong's exceptional luminaire design and engineering capabilities. The high power LED parking lot lights take advantage of Samsung's high luminance LED packages to deliver the performance and light quality required for outdoor lighting applications. Precision-molded acrylic lenses create consistent distributions with superior uniformity, precise cutoff, greater pole spacing and lower power density. One-piece, die-cast aluminum housing provide superior thermal management through conductive and convective cooling in +40°C ambient environments, which contributes to increased system level efficacy and service life. The 400W and 500W generate 46,000 and 57,500 lumens respectively, with a luminous efficacy at 115 lm/W. The luminaire is completely sealed against dust and moisture (IP65). A durable TGIC polyester powder coat paint provides superior protection against fade, oxidation and wear. Optional twistlock photocell receptacle is available for integration with dusk-to-dawn control systems.