KEYFANCLUB 2-Pack 120mm Fan DC 12V Computer Fan 120mm x120mm x 25mm 2-Pin High Performance Cooling Fan 1500RPM

I have an incubator for poultry eggs that was making a horrendous noise because one of the blades broke off one of the fans in it. The fan is 120mm x 120mm with an unusually long (roughly 16") two-wire power lead. The replacement fan (one of two in the pack) has a shorter lead (11.8" per the specs), but is long enough to work in this application. Installation of these fans would be simple if they were being put into a computer case, as I've done many times before. With the incubator however, disassembly of the unit was necessary, and that included removal of hot glue (or something similar) that was used to secure all the wiring in place in the unit. The wiring was not only for the fans, but also for the temperature and humidity sensors, the automatic egg turner, and the heater. This made the installation far more difficult than it might have otherwise been. Once a significant amount of the hot glue was removed, it allowed enough space for the fan connector to fit through the opening between the controls and the main unit. This allowed me to remove the old fan and install the new fan in its place. Because these fans came with grilles, I installed the grilles in front of the fans to prevent something sticking into the blade, which I believe is why my first fan failed. With the new fan and both grilles installed, I was able to secure the wiring in place so the heating element (which is basically like a string) would stay taut, so it would function properly. I was then able to reassemble the rest of the incubator and test everything to make sure it was working correctly. Success! After the successful replacement of the fan, the incubator is once again working quietly as it did when new. The replacement fan worked well in this application, and if I ever need to replace another, I still have a spare.

Nice fans. Used to supplement cooling on a RV evaporation refrigerator. When running I can not hear these fans.

These are smooth running, quiet fans. Low power draw - the two only pull approx 15-watts and cool my HF power amplifier well. I have them setting on the amp on my desktop and they are hardly noticed sound wise. The guard/grill is a good safety feature in case something were to fall into the blades, as the thin plastic blades on all of these type fans can break off easily. They are direct plugin, so if you need an on/off switch, you would need to wire that inline, Easy DIY fan set.

These fans are so quiet. I used one to vent the aera under the bed in our 5th wheel to avoid moisture buildup and can barely hear it running when we go to bed. The other is helping to vent the back of the refrigerator out the top vent, I have to get up close to make sure it's running. The refrigerator fan has been running continuously for 9 months.

One fan did not work. Other fan not much air flow. It was quiet though. When I tried them it was a couple days outside of the return window. Contacted seller and they sent a replacement set right away. Both worked.