GDSTIME 5015 Blower Fan 24V 50mm x 15mm 2Pin Dual Ball Bearing 2-Pack

Tested with my power supply and both fans worked and sounded well balanced. Have plenty of wire length and the casing appears durable at the screw points. Push plenty of air.

Previously I bought different fans, tried to save a buck but they rattled whenever my printhead moved. Just soend a few more bucks and get these. They move much more air and are very quiet. My modded printhead feels like a wind turbine. I bought 4 and one was defective, this company sent 2 replacements in only a day or 2 and they worked perfect. Great customer service!

Sheesh these fans out out some flow!!! I can print so much faster now!!

Bought these to use on my 3d printers. Quiet (for 5015s), and push a lot of air. Probably the second-best fans you could get in this size-range, and definitely worth the price.

Airflow is great for my printhead. A little louder than I am used to. I use the expensive brown fans for most stuff though.

You're probably thinking "It's just a fan, it doesn't matter" and looking for a cheaper option. I know because that's exactly what I did. My Stealthburner was working fine, but I was not impressed with the print quality. I tuned and tweaked and nothing was helping. I was having massive cooling issues, and even dropping the temps to under 200c on PLA did not help, and bridges? Forget about it! I was going nuts trying to figure out if I had a leak or if the fan wasn't getting enough voltage, until a Discord member asked if I was using a Winsinn fan. Desperate for any solution, I ordered GDSTime 5015s and 4010s at the recommendation of several members of the 3D printing community. It hurt a little destroying a fan that I just unboxed but I got it in the Stealthburner and threw a hot Benchy at it. All my issues were instantly fixed. These fans are no joke. There is a clear difference in pressure and flow compared to the Winsinn models. They also have a more tolerable sound profile, as the Winsinns like to whine once they spin up. Every 3D printer I own will have GDSTime fans, and I am working on retrofitting my other printers. You can't go wrong. In my mind, there is no other option. It may be just a fan, but it truly does matter, and when it matters, I'm using GDSTime.

I have a 24V solar power station I built. The solar charge controller can get quite hot when the sun is fully bright and it is hot in the summer. So I got these so I could add active cooling to the solar charge controller. To make it simple, I just added a small fuse and wired the fans directly to my 24v battery system. No need for an on/off switch, I just let them run 24 hours a day. Since the fans have dual ball bearings, I am sure I will get many years of run time out of them. The specifications say they should have a lifetime of about 50,000 hours. That works out to 5.7 years of running 24 hours per day! The fans are quiet and blow a good amount of air for their size. They fit next to my solar charge controllers easily. The build quality is good. Overall, I am very happy with this two pack of 24V fans.

In terms of performance and noise these are worth the buy. There are quieter, and there are more powerful alternatives but these strike a really good balance

One fans is working great the other one has strange noise and i cant return because i solderd new connector seller should refund me half of the price