1Ideal for cooling hot ends, printing material or other radiators that require cooling, suitable for 3D printer. 2Cooling fan special designed for printer use to ensure the normal operation of the 3D printer, can extend the service time. 3Can work continuously for 24 hours, durable and reliable in use, having stable and excellent performance. 4About 50 x 50 x 15mm / 2 x 2 x 0.6in of the cooling fan size, including 2pcs printer cooling fan of the package to meet your needs. 5Made of high quality PBT+30% glass filament +VO, high precise bearing design, low noise and having long life. Item Type: Printer Cooling FanMaterial: PBT+30% glass filament +VOSize: Approx. 50 x 50 x 15mm / 2 x 2 x 0.6inOperating Environment Temperature: -20 ~ 75Service Life: Working environment temperature is 40 (60,000 hours)Service Life: Can work continuously for 24 hoursSpeed: 4500, 6500(R/min)Voltage: DC 24VStructure: Double sleeve bearingFitment: Fit for Ender-3Fit for Prusa i3 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 2 x Fan