This mode is an universal switching-mode power supply for laptop and USB, operation at input AC100V to 240V 47-63Hz, DC7 voltages: 15V/16V/18V/19V/20V/22V/[email protected] output power 130Watt max, with protection functions: overload protection, short circuit protection, power supply by mains supply. With 8PCS tip connecter to suit to almost laptops, select output voltage to suit to laptop and make sure the polarity of tips connect correct before use.