Thunder (TM) Inline Duct Fan for Hydroponic Fan Blower with Quiet Operation - 5 Year Manufacturer Warranty ! (6-INCH) Size: 6-Inch , CFM: 400 , Amps: 0.97 , Voltage: 120v , RPM: 2911 , Hertz: 60hz , Max Wattage: 115w Quiet Operation - Cyclone fans are designed to operate both quietly and efficiently. Thermal protected AC motor. Durable Design  Cyclone fans are encased in a durable powder coated metal housing. Includes mounting bracket. High Quality Impeller  Equipped with a high quality impeller to ensure both a strong and steady air flow. 5 Year Manufacturer Warranty! (CE Certified and UL Listed)