Features: Experience powerful ventilation with our 12cm exhaust fan, featuring a robusts 3000RPM motor and double ball bearing for efficient smokes extraction and air circulations. This duct fan kit includes a DC12V variable speed control, allowing you to customize airflows for great performances in various setting. Ideal for DIY enthusiasts, hobbyists, and professional, this fan is perfect for those working with 3D printers, cutters, or engaging in welding projects. Use it in diverse environments such as kitchens, greenhouses, pet houses, or paint booths to ensure effective smokes and heat dissipation. Designed with durability in mind, the fan's hydraulic bearing system ensures long lasting operation, while the included protective mesh and duct adapter offer added safety and convenience. Specifications: Type: EU Component: Plastic Color: Black Input: AC100-240V 50/60Hz Output: DC3V-12V2A Speed: 3000RPM Size:Approx. 12x12x9.5cm/4.72x4.72x3.74in Tube Diameter:Approx. 11.8cm/4.65in Quantity: 1 set Package Includes: 1 set Exhaust Fan note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.