Input Voltage of Power Adapters

　　The input voltage of a power adapter is the voltage of the electrical supply it is designed to accept. This value varies depending on the region and the type of power grid infrastructure.

　　In different parts of the world, there are two main standard input voltage ranges for household electrical supplies. In North America, Central America, and some parts of South America, the standard input voltage is 120V AC, with a frequency of 60Hz. In Europe, most Asian countries, and many other parts of the world, the standard is 230V AC, with a frequency of 50Hz.

　　Power adapters are designed to be compatible with specific input voltage ranges. Some adapters are fixed - voltage, meaning they are only suitable for a single input voltage, such as 120V AC. These are commonly used in regions with a single - standard voltage. For example, in the United States, a power adapter for a small electronic device like a Bluetooth speaker may be designed specifically for 120V AC input.

　　However, there are also universal power adapters that can accept a wide range of input voltages, typically from 100V AC to 240V AC. These are very convenient for travelers who need to use their electronic devices in different countries with varying voltage standards. A universal power adapter for a laptop, for example, can be used in both the United States and Europe without the need for a separate voltage converter.

Read recommendations:

12V2A Wall Plug Chinese Standard

PD112W

EI-48 ADAPTER

PD100W Interchangeable CHARGER Customizde

20V power adapter Factory