WINSINN 40mm Fan 12V Dual Ball Bearing Brushless 4020 40x20mm for Cooling 3D Printer Extruder/Inverter - High Speed (Pack of 4Pcs)

• ✔️️Dual ball bearings 4020 Fan - High Speed version
• ✔️High quality Dual ball bearings, More stable and Long life, suitable for continuous work. Use time can 24 hours / day. The life expectancy is about 60,000 hours. No maintenance required. But Lubricating oil can further reduce noise.
• ✔️️Rated voltage: DC 12V
• ✔️️Size: 40x40x20mm
• ✔️️️Made by WINSINN

► Double Ball Bearing - High Speed Version ► High quality double ball bearing, more stable and long service life, suitable for continuous work. Use time: 24 hours a day. Life expectancy is about 60,000 hours. No maintenance required. But lubricating oil can reduce noise even further. ►Size: 40 x 40 x 20 mm. ►Rated Voltage: DC 12V ►Line length: about 30mm ----------------------------------------------------------------------------------------------- Package contents: ► 4 x 4020 12V Dual Ball Bearing High Speed Fans ----------------------------------------------------------------------------------------------------- Product Warranty: - WINSINN is dedicated to providing high quality products to all cherished customers. Meanwhile, provides 60 days money back guarantee and 24 months warranty. - If you have any questions, please feel free to contact us, the WINSINN customer service team will spare no effort to help you within 24 hours.