120mm Double Ball Bearing Exhaust EC Cooling Fan Product details: Electric Current Type :EC Mounting: Free Standing Place of Origin: Shandong, China (Mainland) Brand Name: Tongxin Model Number: TX12038 Product name: EC FAN Size: 120X120X38mm Power supply: 115V/220V/230V/240V Bearing Type: Sleeve Bearing/Ball Bearing Material: Plastic Blade/Plastic Frame Motor: Copper Motor Current: 0.06~0.12A Air Pressure: 5.1~15.5(H2O) Noise: 36~52DB(A) 12038 EC Weight: 350~360g Power: 3~18W Air Volume: 78.6~158.5CFM Speed: 2300~4000RPM Certification: CE,ISO9001 12038 EC Fan Life: 30000 hrs