1, when the "Waterproof Cooling Fan" in operation, do not attempt to lock a particularly long time fan, it would not stop because of continuous turn, produces heat and burning fan;
2. When installing the fan, please pay special attention to the noise generated due to resonance or vibration;
3, when handling or operation, "Waterproof Cooling Fan" such as falling from a height of 1500px, will have some impact on the balance of the blade, in particular to avoid the falling ball bearings;
4, screw torque lock shell shall not exceed 4Kgf; please do not use a screwdriver, iron bars and other things stall "Waterproof Cooling Fan", it would damage the fan.