"Waterproof Cooling Fan" power is the impact of the fan cooling effect of a very important condition, the greater the power of the wind is usually the more powerful fan, cooling effect is better. The power and speed of the fan is directly linked, that the higher the "Waterproof Cooling Fan" speed, the more powerful fan. When computers currently sold on the market are generally 12V DC power from 0.x watts to 2.x watts range, purchase "Waterproof Cooling Fan" need based on your CPU heat to choose, in theory, is the power slightly Some of the better large, however, can not be one-sided emphasis on high power, if the power is too large may increase the workload of the computer power supply, resulting in a negative impact on the overall stability.