WINSINN 50mm 5015 Blower Fan 12V, 3D Printer 24 Volt Fans Blower Turbine Turbo Dual Ball Bearing, Brushless Cooling 50mmx15mm 2PIN (Pack of 4Pcs)

I needed fans for my Halo spartan helmet that would run off a usb battery. these worked perfectly. I was a little worried they would be too loud, but they are perfect. They keep me cool and my visor free of condensation. They work great for my application.

I bought these to use as remote cooling fans for my 3d printer. Combined with corregsted plastic tubing and some 3d printed adapter from Thingiverse these are a great option for lowering the weight on your hotend assembly while still providing optimal cooling. I like the cheap price point and low cost. Also the longer wires work well for my remote setup as my main board is farther away with my new set up. Down side is noise level. Compared to the noctua’s these replaced the sound difference is quite noticeable. Still i would say they are either equivalent or maybe slightly less noisy then stock but are also more powerful. The sunlu style fans are probably your best bet if looking for low noise but the months long wait for shipping was longer than i had patience for. In the mean time i found these to be a cost effective decent solution for my needs. Will see about longevity but so far they have been working well in my printer which is usually on for 24 hours a day.

Most printing enthusiasts know, or learn, that a single 4010 fan is insufficient for high-speed printing and steep overhangs. I run a modified Ender 3 Pro with a Petsfang v2 duct for part cooling which requires 5015 fans. The "hydraulic bearing" fans are horrible on anything that moves or rapidly accelerates, as well as any setup where the fan isn't mounted completely vertical or horizontal. They also have a laughably short lifespan. These here are great. Pay the extra cost and get these fans with the dual ball-bearing. They operate well in any orientation (like 45 degrees on a Prusa). You can also lubricate this type of fan if you need to. However... DO NOT expect these fans to be "quiet" (compared to a 4010 fan). These things MOVE air and doing so comes at the cost of a few extra decibels. The fans can be a little whiney when under 90% power but the cooling efficacy is unmatched.

Like others, I had a Vicks cold humidifier and the fan on that one went bad after about a year. Rather than get a new one ($45?) I tried this. It is a perfect physical fit, the connector works fine and polarity is correct. It took me about 10 minutes to swap out the old one -- pretty basic stuff if you own a Phillips medium sized screwdriver. It does make about 30% more fan noise than the original. And it doesn't quite disperse the moisture (fog) as well. On high, I think it puts out more moisture, but it doesn't loft as well and it wafts and settles around the unit. It does a bit better turned down about 20%. As before, I personally disperse the moisture with a HEPA filter blowing up at the humidifier, so for my purposes, I'm fine with it. Sure was cheap.

Looks like most people are buying fans for their 3D printers, but it's commonly used as an exhaust fan for humidifiers and aromatherapy gadgets. They don't last forever, especially with calcium buildup. But they're super easy to switch out. Disassemble the base, remove the control board cover. It unplugs from the board and slides out of position. Mine had some foam tape to dampen vibration, and you may want to add some pieces in the same spots on the new fan. I gently removed the tape from the old fan with a nylon spudger and it had enough tackiness left to stick long enough to get it all reassembled. You have a choice of many different fans. If you like your humidifier to be quiet, choose a quiet one. If you want it to work better and don't worry about noise, choose a high speed one. I chose high speed. It works and sounds about the same as when the whole thing was new. It's striking how worn down the old fan was. Before it stopped spinning entirely, it was pushing out less than half of a reservoir of water overnight. Now it's pushing out almost a full one, which is what it's supposed to do. For features, I chose 5 stars for all. It's not particularly loud for its type. I don't know why warmth maters to an cooling or exhaust fan, but it cool mists very well. And I have no idea what sheerness is supposed to mean in this context... does it make the air suddenly deviate from its course? Yes, that's what even bad fans do. Is it perpendicular to something? Well, actually it is as arranged in the humidifier. So 5.

I see a lot of reviews talking about the noise level and the wiring being flipped. 0 out of 4 of my fans came with the wiring flipped. They all worked perfectly as soon as I plugged them in. I suspect the people saying this had something wrong with their wiring and proceeded to burn out all of their fans and then complain about it. The noise level is what you would expect from a radial blower fan in terms of air noise. These things do move a lot of air by the way which is amazing. The noise from the coils was a bit loud and high pitched at 500Hz pwm so I adjusted to 100-300Hz and it was much quieter! They are quieter, more balanced, and can sustain a higher speed at a very low power level all while putting out more air than my old BigTreeTech radial fans could ever dream of. Very satisfied.

5 stars

Ich habe diese Lüfter für meinen Elegoo Neptune 3 Pro gekauft und bin von deren Leistung begeistert. Die Lautstärke ist recht hoch, was aber für doppelt kugelgelagerte Lüfter normal ist. Da die Leistung der Lüfter so hoch ist, genügt es nun diese bei 30% zu betreiben, verglichen zu den originalen Lüftern dieses 3D-Druckers. Dies senkt dann auch die Lautstärke erheblich.

Does exactly what it should and does it so well, great little cooler 👍

I am running these on a 3d printer to help heat the chamber by moving the warm air from under the bed. They do what they should and not making any noises.

super