Review on 🌬️ Pack of 2Pcs - WINSINN Dual Ball Bearings 50mm Blower Fan Brushless Cooling 24V 5015 50mm15mm by Runbi Alvarez

These fans move a lot of air. when they work. I installed one on a 3D printer and it worked great initially. This lasted about two days and started to behave. It didn't turn on during a squeeze, but when I twirled it around with my hand, it started up. After a few days it stopped working. In addition, he made a lot of noise during operation. A few things to note: 1. The wiring is the opposite of what you would expect from most 3D printer boards.2. The wiring is too short for a 3D printer.3. The performance is more than enough for a 3D printer.4. They make a lot of noise at PWM, but have a normal noise level (not quiet) at 100% speed. The product description doesn't necessarily state that they are made for a 3D printer, so my review has nothing to do with that. Most people will likely buy them for a 3D printer, so it's important to know the facts. My rating is based on the fact that one fan only lasted a few days.