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The Switch Button and LED Flashlight
1. Press the switch button once to display the battery level of the jump
starter, and turn on the output function of USB ports.
2. Press and hold the switch button to turn on the LED flashlight; then
change the lighting modes in sequence with each click. There are 4
modes of LED light that appear in the following order: SOS, strobe, red
light strobe and off.
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