"Tiny Cooling Fan" With the application and ambient temperature changes, sometimes requires a different fan speed to meet demand. Some vendors specially designed adjustable fan speed cooling fan, manual and automatic modes. Manual is designed to allow users to use low speed in winter to obtain a low noise, high speed to get a good cooling effect in the summer. "Tiny Cooling Fan" automatic thermostat radiator general category with a thermostat sensor, according to the current working temperature control "Tiny Cooling Fan" speed, speed is increased by high temperature, low temperature, then reduce speed to achieve a dynamic equilibrium, so that the cooling effect of wind noise and maintaining an optimal combination of points.