1. Power Button Short press to power ON; long press to turn on the LED light, then short press to toggle the LED light among the following modes: Flashlight, SOS, Strobe and OFF. 2. Battery Level Indicators Indicate the charge level of the internal battery. Note: Only jump start vehicles when the battery level of the jump starter is above 50%. 3. LED Light 4. 5. Jump Start Socket USB Output (QC3.0 12V/1.5A, 9V/2A, 5V/3A) 6. USB Output (QC3.0 12V/1.5A, 9V/2A, 5V/3A) 7. DC Output (Max 16.8V/10A) 8. Type-C Input/Output (PD60W 20V/3A, 15V/3A, 12V/3A, 9V/3A, 5V/3A) 8