“Knowing when to turn your power up or down comes with cautious experimentation. Remember, that when you adjust the power supply setting you must compensate by adapting hand speed, pressure and hand movement to avoid damage to the client’s skin.” TattooTattooingPower Supply Book:The Tattoo Textbook: Escape the Grind, Do What You Love, and Launch Your Kick-Ass Tattoo Career Source: The Tattoo Textbook: Escape the Grind, Do What You Love, and Launch Your Kick-Ass Tattoo Career