Nowadays, car radiator fans are widely used, and they are mainly used to dissipate heat from the machine. So how should we choose a cooling fan? Let's talk about this issue. When we are buying, some people think that the larger the fan blades, the better, because the bigger the fan blades, the greater the wind force. In fact, this view is unscientific and incorrect, because the larger the fan blades rotate. The resistance it creates will become greater. So when choosing a radiator fan, the fan blades should be moderate. Don't pursue a radiator fan with a large blade fan. When choosing a car radiator fan, its rated power can be determined according to your needs. It is not that the power of the radiator fan is getting better and better, because its power is larger but the normal use of the machine will also be affected. When choosing a radiator fan, the main choice is good quality. Only good quality can make the radiator fan exert its effect. There is a maintenance function for the machine parts that need heat dissipation. Good quality can increase the life of the cooling fan. When buying a car radiator fan, you should debug it first, and adjust the rotation speed of the fan blade, so that it can perform normal work. The above is the need to pay attention to when choosing a car radiator fan. Only by knowing well can we make scientific choices.