Product DescriptionThe small dc blower fan is constructed of PBT plastic which meets UL 94 flammability standards.These mini 40 mm brushless dc blower cooling fan often used in 3D printers, spot cooling heat sinks, it also can cool down humidifier, purifiers, projectors, small PC inside closet and more; or other small appliances series repair replacement, These fans are also used to cool down heating elements and so on faster.Specifications:Model: 4020Rated Voltage : DC12V/24VOperation Voltage: DC 5-13.2VConsuming Power: 1.5W(4.2 Max.)Connector: 2pin-ph2.5 RatedRated Speed: 6500 R.P.M.Max. Air Flow: 8.46CFMIife Expectance: 50,000 hours at 40 degreeInsulation Level: UL Class ACertificate: UL,CE,TUVAcoustic Noise: 32.5d-BARotation Direction: Clounter-clockwiseSize: Size: 40x40x20mm/ 1.57" x 1.57" x 0.8"