... 60W(12V/16V/19V)/4A;USB 5V/2A Material: Aluminium alloy 5V USB Output Specifications:20000mah output ... 60W(12V/16V/19V)/4A;USB 5V/2A(5)4 LED indicates the charging status:<35%,<65%, ... DC output.(8)You can charge 5V digital devices when led indicates 5V output(9)There needs 4 hours ... overcharging, overdischarging, overcurrent and shortcircuit(11)Applicable:5V 2A to charge Samsung i91000 Galaxy S2,Ipad3, ...