This standard 120mm exhaust fan delivers 2800RPM speed and 82CFM airflows, efficiently reducing equipment temperature for welding stations, 3D printer enclosures, and electronics workbenches Includes a 12V power adapter with variable speed and on / off switches, allowing customized airflows for optimal ventilation and cooling Built with double ball bearings and noise reducing technology ( 52dB), ensuring smooth operations and long lasting reliability in demanding environments Supports AC100V-240V input, making it suitable for global use in DIYer projects, hobbyist workshops, and professional electronics maintenance Features a 117mm duct adapter for easy installation in 120mm round pipes, ideal for small grow tents, 3D printer cases, and purification in welding or sprayer booths, Manufacturer: LiRRvb