Size: 38mmx55mm Power the circuit board or pins through the MicroUSB connector The voltage regulator (LDO) can handle the input voltage of 6V to 9V (peak 18V) DC The output current is 5V - about 800mA, 3.3V - about 800mA (the higher the input voltage, the lower the output current) This will provide a reliable impetus for most of your initial projects