About Artempo Guitar Effect Pedal Power Supply Artempo Guitar Effect Pedal Power Supply works to power for 9V, 12V or 18V pedal and works from AC100V to 240V. It comes with 10 isolated output including 7 way 9V 100mA, 1 way 9V 500mA, 1 way 12V 100mA and 1 way 18V 100mA and input is DC 18V. Moreover Artempo effect pedal power is designed with blue LED indicators so you will exactly know which plug you use works or has problems, and they will blink if the pedal receives too much current. The 10 isolated output are overcurrent protected so don't worry about your equipment. Furthermore, the power supply is portable and easy to use. Specifications: Size: 5.9 * 2.3 * 1.4 inches Built-in power cable 10 Isolated Output Powers for 9V, 12V or 18V PEDA Product Weight: 1.1 pounds Package contains: 1 x Power supply 1 x charger 10 x power cable 2 x polarity reversal cable