This model is a digital switching-mode power supply for Laptop and USB, operation at input AC 100V to 240V 50-60Hz, Output USB port: 5V@2A max. DC JACK voltages: 12V/15V/16V/18V/19V/20V@7Amp max 22V/24V@6.25Amp max, output power 150 Watt max, with protection functions: Overload protection, Short Circuit Protection, over voltage 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 to select a correct connector before use. Explain: 18V display for 18v & 18.5V, 19V display for 19v & 19.5V.
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