It depends on how you drive it. Digital tube is also an LED tube, each corresponding to a LED tube, 10mA is enough. Then the 8 paragraphs are added up, and each one is 100mA. Resistors are generally better strung on segment code lines. 0.8 inch, it is estimated that the current needs to be about 20mA to 50mA. Because it consumes a lot of power. It will not burn, that is, the brightness is different, if you feel too bright, you refresh faster will also reduce its brightness.
1, digital tube static display of the working current is about 5mA2, digital tube dynamic display of the working current is about 20mA