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The Hicool 4-Inch EC Fan (B12038220H) represents the next generation of cooling technology for industrial and DIY applications. "EC" stands for Electronically Commutated, which means this fan combines the best of both worlds: it plugs directly into standard 220V AC mains power, but uses an internal electronic board to convert that power to drive a highly efficient, brushless DC motor.
Available at Tomson Electronics, this standard 120x120x38mm (4-inch) cooling fan drastically reduces power consumption compared to traditional AC fans while operating much quieter and generating less of its own heat. It is the ideal drop-in replacement or upgrade for server racks, control panels, welding machines, and heavy-duty custom electronics enclosures where reliable, continuous airflow is mandatory.
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Q: What is the difference between this EC fan and a standard AC fan?
A: A standard AC fan uses AC voltage directly to drive the motor, which is less efficient and generates more heat. This EC fan accepts AC voltage, but internally converts it to run a DC brushless motor. This results in up to 70% lower power consumption, quieter operation, and a longer lifespan.
Q: Can I plug this directly into my wall outlet?
A: Yes, it is designed to run on standard 220V AC mains power. However, it usually comes with bare wire leads or standard fan terminals, so you will need to safely wire it to an AC power cord or a switched panel connection.
Q: Will this fit where my old 120mm PC fan used to be?
A: The mounting holes follow the standard 120mm fan spacing, so it will fit the exact same mounting points. However, it is 38mm thick (standard PC fans are usually 25mm thick), and you must remember this requires 220V AC power, not the 12V DC power from a computer motherboard.
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