When the power socket in the home is not enough, the first thing people think of must be the extension cord. However, there are many brands of extension cords and their lengths are different. The form of plugs also has two holes, three holes and USB connection ports. In addition, they are also designed with anti surge, fire protection, lightning protection and other functions, which are really dazzling. See what you should pay attention to when purchasing extension cables.
First: Select the appropriate type according to the use distance. If the device is too far away from the socket, use the extension cord type.
Second: Check the number and spacing of sockets. If necessary, select the extension cable equipped with USB connection port.
Third: If it is necessary to protect important electrical equipment and various safety functions, the extension cord must be checked for various safety functions in addition to providing power.
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