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USB booster input voltage is DC 5V, the output voltage is DC 9V or 12V, the max output current is 1A (9V), 0.8A (12V).
APPLICATION
The converter can be used to power a router via a power bank if when power down. In addition, it can also be applied to other devices with a 5v power supply, such as a small fan, desk lamp, solar panel, USB power pack, power adapter, etc.
SWITCH & LED DISPLAY
Step up regulator is designed with a switch, you can choose the output 9v or 12v, and the LED display would show the output voltage value.