YR-ST300 Series LED street lights deliver superior optical performance in a modular architecture that provides exceptional scalability to meet application lumen requirements. Available in nine power wattages (60W, 90W, 120W, 150W, 180W, 210W, 240, 270W and 300W), YR-ST300 is designed to achieve highly competitive system lumen-per-dollar performance while providing future proof lighting solutions that meet the stringent efficacy and reliability standards required for modern roadway and street lighting applications. YR-ST300's housing is constructed from rugged aluminum alloy with high thermal conductivity to sink heat faster and more efficiently. The patented heat sink design allows greater heat transfer by air convection. The modular LED bricks consist of Samsung LED packages designed to deliver high efficacy with high flux density. The high performance light sources paired with advanced thermal management system ensure maximum hours of operation to assure L70 rated lumen maintenance and ANSI color compliance. Injection molded acrylic optics create consistent distributions for maximum spacings between columns. The optics are fully sealed to the LED module to maintain an IP65 rating. With high reliability, high efficiency constant current Mean Well drivers that perfectly match LED load, YR-ST300 LED street lights deliver exceptional operating efficiency and reliability under wide temperature and electrical ranges. The ultra-durable TGIC polyester powder coating provide superior rust inhibiting characteristics in salt spray test and excellent resistance to UV degradation and abrasion.