If the previous fan from Koolance isn’t powerful enough for you, you may be pleased with the FAN-12038HBK-184 model.
The packaging of the Chinese sample of this Koolance fan is a simple plastic pack with a warning against messing around with its blades and a 3-wire cable which is actually part of the fan itself.
The Koolance FAN-12038HBK-184 is the only model in this review to be 38 mm thick. It is a heavy thing with a mass of 364 grams, a 112mm impeller and a 60mm motor.
The 11 blades aren’t 38 mm thick, though. In fact, the impeller is only half the total thickness: 19 mm. The other half is taken up by the fixed reverse blades which rectify the air flow:
It is necessary because the air flow has to be focused on the object being cooled considering the high peak speed of the fan (4000 RPM). The Koolance FAN-12038HBK-184 is specified to have a record-breaking air flow of 183.5 CFM. Even the higher-speed Scythe cannot do that, at least according to its specs. The rest of the key features are appropriate, too: a static pressure of 20.4 mm of water and a noise level of 59 dBA.
Koolance uses a dual ball bearing in this model, too. The electrical specs are impressive: over 2 amperes and 24 watts!
The Koolance FAN-12038HBK-184 offers no means of speed regulation. Its cable is 500 mm long.