... 12000mah Input:19V/1.2A battery:12000mAh/3.7V Output: DC 9V/2A,12V/2A ; USB 5V/1A Specifications: ... select the 9V or 12V DC output,there are 3Led indictor indicate the output voltagewhen you the power bank, ... this.(7)There is no 5V Output when using 9V/12V DC output.(8)You can charge 2 devices ... simultaneously when led indicates 5V output(9)There needs ...