"Mini Air Cooling Fan" The main components are: AC motor. Its working principle is: energized coil in a magnetic field by the force of the rotation. Form of energy is transformed: the main electrical energy into mechanical energy, and because the coil has a resistance, so that there is an inevitable part of the electrical energy to be converted into heat.
1, parallel fan: dual fan pressure parallel unchanged, but will increase the amount of wind. "Mini Air Cooling Fan" to increase air flow and therefore increase the cooling effect, in the design of power if the heat is too small, you can consider increasing the fan to resolve.
2, the series fan: Results of the series fan is pressure to increase, but the wind changed. This approach can not solve the heat problem, "Mini Air Cooling Fan" is generally used when too much wind resistance near adopt to ensure that the amount of wind.