Product details: 14038 DC FAN Type: Axial Flow Fan Electric Current Type: DC Mounting: Free Standing Place of Origin: Shandong, China (Mainland) Brand Name: Tongxin Model Number: TX14038 Product name: DC BRUSHLESS FAN Size: 140X140X38mm Power supply: 12V/24V/48V Bearing Type: Ball Bearing Material: Black P.B.T (UL94V-0) Motor: Copper Motor Current: 0.5~3.1A Air Pressure: 0.68~1.35mm(H2O) Noise: 60~69 DB(A) 14038 DC Weight: 450g Power: 19.2~52.8W Air Volume: 199.8~286.3 CFM 14038 DC Speed: 3500~5000RPM