Parameters：
Input voltage range: 3V ~ 5.5V. The input voltage must be lower than the set output voltage.
The output voltage can be set to 5V/8V/9V/12V, the default is 12V
Output capability: 5V1.5A, 8V1A, 9V1A, 12V1A can be output when input with 3.6V lithium battery;
When input at 5V, 8V1.2A, 9V1.2A,
12V1A
When the default 12V output, the LED indicator consumes about 1mA (the input current is about 3mA)
If the indicator light is turned off, the input current at no load is Less than 1mA

【Voltage setting instructions】

The words A and B can be seen on the front of the PCB. Use an electric soldering iron to change the on-off of the pad next to the character to change the output voltage.
A B VOUT
Disconnect 5V
Disconnect 8V
Connected and disconnected 9V
Connected 12V