Review on 🌀 WINSINN Dual Ball Bearings 40mm Fan Brushless Cooling 24V 4020 40mm20mm - Pack of 2Pcs for Efficient Cooling Solution by John Ortiz

These fans are terrible. I wanted to use them for a 3D print head, but they sounded like a miniature jet engine and vibrated horribly. I could bear the noise, but the vibration was strong and unsuitable for my purpose. I ordered a number of accessories but they were also very noisy and wobbly. In the end I returned both. Avoid these fans if you don't want noise or vibration. It seems that all the fans (including some 3010 and 4010 box fans) I received from this seller were really poor quality. The power you need is just not there. I would buy Noctua fans if they made 24v models.