... RatingIP54 (for outdoor, use IP65 housing)Material of Lamp bodyAluminum+PCFinishshining anodized silverNet Weight1.05kgSize122 (Dia)x181.8 ... Distortion (THD): <20%Safety & EMC standards that the lamp is tested & adheres to: UL/FCC Fan life expectancy ... & audible noise level: 50,000hrs, 3.1w, 4000RPM, 37.5dBAWeight: <1.15kg, ... me.Welcome to sample order!! UL led highbay lamp