Review on WINSINN Cooling 50X50X15Mm Extruder Makerbot by Todd Lowry

I bought this to replace the Noctua A4x10 as a cooler for the cold end of my 3D printer as a fan (with fan). hood) has to move a lot more air through the radiator. Unfortunately, upon replacement, the temperature of the heatsink has increased, suggesting that it moves less air than the axial noctua. I replaced it with an old cheap fan, I needed to cool the parts and it worked much better so it's not a shroud. They're just weak fans. On the plus side, they are very quiet.