When we choose a cooling fan, especially for certain voltages that are not very stable or have several different voltage gears for speed adjustment, we need to understand the voltage range of the cooling fan, such as a cooling fan that works with a 12V DC voltage. How much voltage is it safe? The working voltage range of the fan is generally plus or minus 10%. For example, the working voltage range of 12V is 10.8-13.2V, and the 5V cooling fan can work at 4.5-5.5V. Of course, according to the actual situation, some special high-speed, low-energy design 12V cooling fans can start working at 3V, and the maximum voltage can also exceed 13.2V. Welcome to the heat dissipation classroom and news center of the cooling fan manufacturer again. The copyright belongs to the cooling fan manufacturer and represents only personal opinions. Please do not reprint the whole article. Any violation will be held for legal responsibility. If you need to know more about the cooling fan manufacturer's product introduction, please Click on the product center