Features: Experience powerful ventilation with this 12cm 12V 0.3A exhaust fan featuring a 3000RPM motor, 81 CFM airflows, and adjustable speed controller for efficient smogs extraction and air circulations. The complete set includes a DC12V speed regulator, two duct adapters, eight mounting screws, and sturdy plastic construction with oil impregnated hydraulic bearings for quiet, long lasting operations. Ideal for craft enthusiasts, printer operators, workshop professional, and pet owners requiring efficient fumes extraction in technical projects or confined spaces. Effectively removes odors and heat from kitchens, bathrooms, welding stations, chicken coops, dog kennels, or sprays booths through its 4.7 inch circular duct compatible design. Engineered with industrial grade components, this blower fan ensures safe heat dissipation and optimized airflows control for both hobbyist workshops and commercial ventilation systems. Specifications: Materials: Plastic Size: Total Length 16.5cm/6.49inches round tube diameter 11.8cm/4.64inches Voltages: AC100-240V Air volumes: 81.02CFM Speed: 3000RPM Noise: 36.63DBA Package Includes: 1Set European Standard 12025 + Speed Regulator+2Pcs Air Duct + 8Pcs Screws note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.