WINSINN 5015 24V DC Cooling Fan 50x50x15mm for DIY 3D Printer Extruder Hotend Makerbot MK7 MK8 CPU Chip Arduino - 2Pin 0.1A 2.4W 6200+-10% RPM (Pack of 4Pcs)

Used as a part cooling fan in FDM printer. Great airflow - not too noisy - however if the rotor is blocked from turning by a bit of debris, or if the fan air output is blocked, the unit will overheat to the point of melting the fan housing. Also if running with a ambient temperature over 40C under load the fan will suffer damage (rear of housing melts). Power is 3 watts at 24V

Achetés pour remplacer les ventilateurs d'origines de mon imprimante 3D je suis bluffé car ils sont hyper silencieux et je trouve qu'ils soufflent très fort donc attention à vos réglages. Je recommande!

Winsinn makes really good stuff. I believe they are the best fans you can get before entering in to the expensive high end brands. But compared to GDStime that many recommended, I really can't see any difference, both comes with liquid bearing or ball bearings, your choice - ball bearings longer life span but maybe louder. Winnsin push a tiny bit more air so I don't see any reason why go with any other brand consider the value/price. So I recommend all of their fans.

they really BLOW

I tested only one so far, others are spare. Works great. Edit after futher testing : I have compared it to others fan of same size with respect to flow and static pressure. This blower is indeed the quietest but provides the lesser flow and pressure. I recommend it only if you need low noise and that you dont need big airflow performance. For 3D printer, if the airflow is not too much restricted and the fan not too far from the object to cool, it is totally fine. Direct blow without fancy air duct is best. In my application where i need the airflow pushed though a filter, this blower is too weak so i will use others.