The AC in a power socket represents alternating current, while DC represents direct current. Usually, AC power sockets are labeled with 250V10A, which means that the maximum voltage they can pass through is 250V and the maximum current is 10A. In practical use, for safety reasons, both voltage and current values should not exceed this limit to prevent the occurrence of dangerous situations such as fires. AC power sockets are mainly used in the fields of household appliances and electrical engineering, as they belong to the category of strong and alternating current. In contrast, DC is commonly used in chargers, other electronic product sockets, and connectors, with a wide range of applications.