WINSINN 40mm Blower Fan 12V, 3D Printer Micro 12 Volt Fans Blower 4020 Dual Ball Bearing, 40mmx20mm 2PIN (Pack of 4Pcs)

Good packaging, all working parts. Little louder than the original fan i had on sidewinder x1 3d printer.comes with long bit of wire. Depending on your printer type/use may have to trim.

I used these for fans inside a cosplay helmet to help from the lenses fogging and too help keep me cool, and they do just that. I have them hooked up to a 3 AA battery pack and they last for a good amount of time. They are a little noisy and I did have to create a cover to keep my hair from getting caught in them, but that's due to the application I utilized them for and not any fault of the design or manufacturing.

I have heard really good things about this brand and since one on my printer went out i decided to give em a try!UPDATE....I actually got around to installing these and they worked out great! much more quite then the originals and run super smooth. No regrets and will definitely be ordering more when the time comes!

Compared to the stock Creality 4020 blower fan these were noticeably louder (~15db louder when measured next to the fan). There was also a weird sound/vibration/whine on lower power (50%). Another issue I had was that these were not wired correctly out of the box. I had to flip the wires in order to get it to work with my printer which was inconvenient. I only tested one fan so it may be a dud. Overall these are inexpensive fans that’ll probably get the job done, but are louder than what they are replacing. Not sure how durable they are, only time will tell. Might be worth spending a bit more money for fewer fans that are quieter and wired correctly.

I bought these for a custom cooling system I was working on.I was surprised by how quiet they are.-Now the PSU is the only noisy item left-

These fans seem to work ok. But you might need to solder them. Two from the factory didn't work. Both had wires detached. One was missing one, the other both weren't soldered. It didn't even look like they were soldered on to begin with. It's easy enough to do, if you have a basic soldering iron. I don't consider any new product that I have to immediately repair, to be a good product. Just tin your wire, heat the solder blob, and then let them cool together.Once you fix them, they blow very well. I'm using two on a 3d printer, as a hotend fan, and the part cooling fan. Of all my problems, I don't think these fans are part of it.If you wire these up backwards, they won't blow. Usually DC motors will run backwards, but these don't. Even if they did work backwards, blower fans like this can't work in reverse. Physics thing, not an opinion.Pay attention to the wire colors on the fan, and make sure they match up to your wires. One of my connections was wired backwards, so it simply didn't work. Once I reordered the pins, it worked perfectly.

fits voxelab aquila, pretty quiet

The stock ender 3 part cooling fan put out more air than these 4020s. The worst part about the 4020s is the amount of vibration form them. It felt like I was holding a vibrating motor not a fan.Trust these other reviews. These fans are NOT good buy other ones.

Works great, thought it would be a bit stronger though

Le ho usato per moddare la mia stampante 3d.Fanno ovviamente molta più aria delle 4010 stock della stampante, e quindi hanno migliorato di molto il cooling della stessa.Le ho installate da un anno e vanno ancora alla grande.Consigliate

Son pequeñas turbinas de 40x40x20, un tamaño contenido con bajo nivel de ruido y un flujo de aire medio. Los uso como inyectores de aire para el hotend de impresoras 3D. Son económicos y vienen bien presentados en un estuche de plástico transparente. incorporan cable de 30cm con conector JST. No se cuanto durarán pero no me preocupa, tengo de repuesto. Los volvería a comprar.

Dieser Artikel ist für meine Bedürfnisse exakt das Richtige. Gerne wieder!

Bei Nennspannung 24V hat der Ventilator merkliche Vibrationen durch die Unwucht der Flügel. Das kann durchaus im 3D-Druck an den Aussenseiten zu sehen sein und belastet die Führungsschienen der Druckköpfe zusätzlich.Für den Preis von 5,50 Euro pro Stück hätte ich eine präzisere Austarierung der Lüfterräder erwartet. Durch die Vibrationen werden die empfindlichen Kugellager früher zerstört. Schade eigentlich!