What should be considered when choosing a DC fan

DC fan, as the name suggests, is a cooling fan that uses DC voltage and electromagnetic induction to convert it into kinetic energy, thereby causing the blades to rotate. Do you know what to consider when choosing a DC fan?
The speed of the DC fan is the same as the power of the DC cooling fan. The higher the rotational speed, the greater the wind force, and the better the cooling function. However, high-speed can cause high vibration and noise, and the higher the speed, the greater the impact on the service life of the fan. Aluminum and plastic are two popular materials for DC fans in the market. Aluminum fans generally use AC fans, which have low cooling performance and small air volume. DC fans are generally made of plastic. The performance of a DC fan requires it to provide sufficient exhaust capacity. The hot air in the cooling device will work in reverse at high temperatures when the hot air temperature is low or the hot air flow rate is relatively small.
Choosing a good brand of DC fan is often overlooked by users when choosing. Many low-quality brand fans, after being used for a period of time, will produce a lot of noise due to severe bearing wear, which not only affects the service life of the fan, but also makes you upset during use. Therefore, it is recommended that you choose high-quality branded products.