Specification Brand : Tyenaza BulletPoint1 : Ideal for cooling hot ends, printing material or other radiators that require cooling, suitable for 3D printer. BulletPoint2 : Cooling fan special designed for printer use to ensure the normal operation of the 3D printer, can extend the service time. BulletPoint3 : Can work continuously for 24 hours, durable and reliable in use, having stable and excellent performance. BulletPoint4 : About 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. BulletPoint5 : Made of high quality PBT+30% glass filament +VO, high precise bearing design, low noise and having long life. ItemName : Tyenaza 2pcs 3D Printer Fan Silent Cooling Fan Fit for Ender‑3 Replacement Part 50x50x15mm DC24V ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 11 centimeters ItemPackageDimensions_Width : 6 centimeters ItemTypeKeyword : 3d-printer-platforms Manufacturer : Tyenaza ModelName : Tyenazac3zn4v8usb ModelNumber : Tyenazac3zn4v8usb NumberOfItems : 1 PartNumber : Tyenazac3zn4v8usb ProductDescription : Item Type: Printer Cooling Fan Material: PBT+30% glass filament +VO Size: Approx. 50 x 50 x 15mm / 2 x 2 x 0.6in Operating Environment Temperature: -20℃ ~ 75℃ Service Life: Working environment temperature is 40℃ (60,000 hours) Service Life: Can work continuously for 24 hours Speed: 4500, 6500(R/min) Voltage: DC 24V Structure: Double sleeve bearing Fitment: Fit for Ender-3 Fit for Prusa i3