"Tiny Cooling Fan" should be high speed, high winds, people feel cool; the temperatures drop at night, when people sleep, should gradually reduce speed, so as not to make cold. While fans have different stalls adjustment function, but you must manually shifted dignitaries, fell asleep on the powerless, and widespread use of the timer off approach, on the one hand is a timing duration is limited, usually twelve hours; on the other hand may be twelve hours after the temperature is still not much lower, and "Tiny Cooling Fan" shut down, people wake up in his sleep and had to get hot reopen fan, increase timer, very trouble, and may repeatedly timed after regular time last too long, after the temperature is lowered fans still continue to hair, make cold; The third aspect is only a simple timing is closed to the "Tiny Cooling Fan" the power of a single function can not meet the temperature change of the fan wind speed different requirements. Another example in the electronics cooling high power, it is now most of them are using air cooling system, use the fan cause air flow to remove heat, heat the electronic products will not burn.