Cheyenne Hawk working voltage

Hey guys, I just got my new spirit, and was wondering if you could help me with the voltage.
I have heard that people are using same voltage for lining and shading, but not sure about the number, how many volts to run the machine on?

thanks ahead

on the hawk i run around 9 volts for coloring, about 11 for color blending and a little higher for bigger outlines.

thanks bro, something to start with :)