Features: Powerful 4 inch duct fan with 65CFM airflows and 2600RPM efficiently removes smokeings, fumes, and moisture, featuring sturdy ball bearings for long lasting ventilation in workshops, kitchens, and grow tents. Adjustable speed 12V fan operates at 4W low power consumption, suitable with 100 240V via included adapter, designed for seamless integration with 10cm diameter ducts and multiple installation configurations. Ideal for craft enthusiasts, electronics repair technicians, and printing professional requiring efficient fumes extraction in enclosed workspaces or engraving environments. Perfect ventilation solution for welding stations, bathroom humidity control, printer enclosures, mobile home airflows enhancement, and dryer exhaust boosting with easy 4 inch duct mounting. Compact yet robust plastic construction ensures portable portability while maintaining structural integrity for continuous operations in residential, commercial, and hobbyist ventilation applications. Specifications: Materials: Plastic Input: AC100-220V Air volumes: 65CFM Power: 4W Noise: 35DB Speed: 2600rpm Size:Approx.12x12x10cm/4.72x4.72x3.93inches Air Duct Diameter:10cm/3.93inches Package Includes: 1Set 12cm Duct Fan With 1 Ordinary Duct And European Standard Speed Control Power Supply 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.