Hello, I am glad to answer for you Pinwin LCD library 10000mah output USB1 5V-1A, USB2 5V-2A, USB1 is suitable for charging mobile phones, USB2 is suitable for charging tablet computers. Can charge two external devices at the same time. The use of LCD power library: touch 0.5 seconds, LCD screen display working status, there is output; After 30 seconds, the LCD screen is turned off, and then touch the LCD screen for 0.5 seconds. Touch the switch for 2 seconds or after the device is full for 30 seconds, the LCD screen will close and stop output. When charging the LCD itself, it is recommended to use the 5V-2A punch head to charge.