The advantages of DC fan speed reduction include the following:

1. Power saving: Reducing the speed of a DC fan reduces the consumption of electrical energy, which in turn reduces the cost of electricity. This is also a reflection of the high energy efficiency of DC fans, high energy efficiency also means high power factor.

2. Reduce noise: Reduce the speed of DC fan can reduce the noise generated by the operation of the equipment, to provide users with a quiet working or living environment. According to the actual situation to reduce the appropriate speed, the fan can even operate in a quiet environment, which not only ensures the cooling effect, but also reduces the wind noise.

3. Extend the life of the equipment: Reduce the speed of the DC fan can reduce the rotational intensity and wear and tear of the equipment, thereby extending the life of the equipment. This is because the DC fan speed is determined by the number of turns of the coil in the motor, the operating voltage, the number of fan blades, inclination, height, diameter and bearing system, reduce the speed can reduce the impact of these factors.

4. Improve safety: Reducing the speed of the DC fan can reduce the vibration and shock generated by the operation of the equipment, thus improving the safety of the equipment.

5. Reduced maintenance costs: Reducing the speed of DC fans reduces the maintenance and repair costs of the equipment, as there will be less wear and tear and damage to the equipment.

To summarize, DC fan speed reduction has the advantages of saving electricity, reducing noise, prolonging equipment life, improving safety and reducing maintenance costs.