All need to use "Micro Cooling Fan" cooling electrical or electronic product design engineer must decide on a particular system needed for cooling air flow, and the required amount of wind power depends on the understanding of the system and whether it can take away enough heat , the situation in order to prevent the system from overheating occurs. The fact is, the useful life "Micro Cooling Fan" system due to insufficient cooling system is reduced, so the design engineer can understand that sales and price system, probably because the useful life of the system does not match the user's expectations decreased. To select the right "Micro Cooling Fan" ventilation components, you must consider the following objectives: the best air flow efficiency; minimum size fit; minimal noise; minimal power consumption; maximum reliability and service life; a reasonable total costs.