This model is an AVI switching-mode power supply for Laptop. This model operation at AC to DC and DC to DC 2in1: AC input 100-240V 50-60Hz, DC input 12V. Output DC Seven voltages: 12V/15V/16V/18V/19V/20V 4.5Amp max 22V/24V output current 3.75Amp max, output power 90 Watt max, with protection functions: Overload protection, Short Circuit Protection, power supply by mains supply. With 7PCS tip connector 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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