Brand - WorldWide Tattoo Supply Maximum Voltage - 15 volts. Amperage - 2 volts. Weight - 11-oz Color - Red Dimension - 6.5" (L) x 3.5" (W) x 1.5" (H) Power Input - 110-240V (Can be used in Any Country). Description - 8-turn voltage adjustment knob that can fine tune the voltage up to 1/10th of a volts. This power supply has max voltage up to 15 volts and 2 amp. Great for any professional artist in a busy shop, the power supply is durable and compact.