Cooling Blower3pcs DC12V 5015 Cooling Blower 2-pin Exhaust Fan 50x50x15mm Centrifugal Fan for 3D Printer Humidifier Aromatherapy and Other Small Appliances Features: Compact structure, easy to install and operate. High-precision bearing for long service life and low noise. Voltage: DC12V; Current: 0.18A; Speed: 7000 +/-10% RPM. With 39.37in 2-pin wiring connector. Excellent for cooling heat on 3D printer, humidifier and other small appliances.