WINSINN Dual Ball Bearings 40mm Blower Fan Brushless Cooling 24V 4020 40mm20mm ?Pack of 2Pcs

? Dual ball bearings - 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.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. ?Size: 40*40*20mm ?Rated voltage: DC 24V ?Line length: about 11.8in / 30cm --------------------------------------------------------------------------------------------------------------- Package include: ?2 x High Speed Dual ball bearings 4020 24V Fan --------------------------------------------------------------------------------------------------------------------- Product Warranty: -WINSINN are devoted to offer premium quality products to all cherished customers. Meanwhile supply 60 days money back guarantee and 24 months warranty. -If there are any questions, please feel free to contact us, WINSINN Customer Service Team will spare no efforts to assist with you within 24 hours.