Dualjännitteisissä

Dualjännitteisissä refers to a type of electrical connector or system designed to accept and operate with two different voltage levels. This is commonly found in power supplies for electronic devices, particularly laptops and other portable equipment. A dual-voltage power supply can automatically detect and adapt to either a lower voltage, typically around 110-120V common in North America, or a higher voltage, usually 220-240V used in Europe and many other parts of the world. This feature eliminates the need for separate voltage converters when traveling between regions with different electrical standards. The device itself contains internal circuitry that adjusts the input voltage to the appropriate level for its internal components. This makes the device more versatile and user-friendly for international consumers. The term can also apply to other electrical components that are designed to handle two distinct voltage ranges for specific operational purposes within a larger system, though its most common application is in power adapters.