Features:High efficiency of the motor, 100% pure copper winding, high efficiency frequency conversion.EC motor, 6-stage variable frequency brushless high-performance motor, 150 watts per hour, producing 1065CFM airflow.The fan operation noise is small.The fan speed from 0 to 100% speed will not produce noise. With the stepless speed governor,PWM speed control, speed control is more accurate. With 5 meters cable.Aluminum alloy shell for better pressure resistance and durability.Suitable for harsh environment.The both ends of the fan can be connected to pipeline.In accordance with UL standards.The head uses PBT material, not only environmental protection but also fire prevention.Use scene: kitchen, bathroom, internet cafe, chess room, health club, beauty crown, solder, warehouse, computer room.Specification:Wattage:150WSize:12.13 x 8.27 x 10inchCFM:1808m/h,1065CFMMaximum Noise:65dBAMaximum Speed:3200RPMHead Material:PBT environmental friendly and flame retardant.Fan Pressure:510PA,52mmH2OPackage List:1 x Fan.Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.