they run between 2-5 volts..I ran this about 4 and yes all rotary, swash to outline 3 and 5 liner... then a 9 mag for everything else.fusion inks.

that is a tough call on which i like better, the neo is heavier then the RW the RW feel more natural in my hand. real simple made machine but very well built. I love my neo tat like I said there neck and neck in my book..But hey who am I!!! just a small town tattoo artists.