1. Power Button Press the power button to turn the tool ON. Press and hold the power button to turn on the LED light, then press the button again to toggle the light among the following modes: Flashlight, SOS, Strobe, and OFF. 2. Battery Level Indicators Indicate the charge level of the internal battery of the jump starter. (The four indicators will flash for around 10 seconds when an over-temperature is detected.) Note: Only jump start vehicles when the battery level of the jump starter is above 50%. 3. Jump Start Socket 4. USB Type-A Output (QC18W 12V 1.5A, 9V 2A, 5V 3A) 6. 5. USB Type-A Output (5V 2.4A) LED Light 7. USB Type-C Input (5V 3A) 8