
I bought this fan in May, now it's July and it breaks. It was very quiet at first but got louder over time and now it spins slowly if you don't push it a few times. Not good quality at all. TO UPDATE! WINsinn sent 2 new fans and also mentioned that this brushless fan should not be used continuously for more than 12 hours. The manufacturer of my 3D printer suggested using this fan and it's clearly not up to the job. Winnsinn suggested using this fan instead of WINSINN 80mm Fan 24V DC Dual Ball Bearing 8015 80x15mm Brushless Silent Cooling for PC. Great support from Winnsinn, increased my rating to 5 stars!

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