120x120x38MM AC Axial Flow Cooling Fan (7 Blades)

The cooling fan deliver high volume air flow with lower noise to facilitate a highly efficient ventilation in enclosed or small areas. Dual ball bearing allows continuous operation 24/7 without too much of dust and high temperature concern, have a lifespan. Even more it allows the fans to be laid flat or stand. Easy to install and use. It is perfect for the custom projects which requires ventilation, cooling, or as a replacement fan for various products. 120 x 120 x 38 mm (4.7 x 4.7 x 1.5 inch) Parameter Voltage (V) 110V 220V Bearing System Sleeve?& Ball Impeller Plastic Frame Aluminum Alloy Freq. (Hz) 50/60 Current (A) 0.24/0.22 ?0.17/0.14 Input Power (W) 23/21 Speed (RPM) 2600/3000 ? Air Flow (CFM) 98/112 ? Stati Pressure (mm-H2O) 7.3/9.2 ? Noise Level (dB-A) 40/45 ? Operation Temperature -10¡æ-65¡æ, 35%-85% RH Storage Temperature -40¡æ-70¡æ, 35%-85% RH