1、Ten independent outputs, with isolated short circuit/over current protection 2、Bright blue LED is used for foot pedal lighting and short circuit indication, very convenient 3、This electric guitar pedal board power provide power for 9V, 12V or 18V pedal 4、Come with a USB port for charging electronic devices such as for iPhone/iPad, etc. 5、There are a variety of plug specifications to meet your different using needs 1 x Pedal Power Supply12 x Adapter Cable1 x Adapter1 x User Manual Item Type: Pedal Power SupplyInput Power: 18V 1A1~4 Channels: 9V 100mA5~7 Channels: 9V 300mA8 Channel: 9V 500mA9 Channel: 12V 300mA10 Channel: 18V 100mAHow to Use: You need to connect the adapter to the product and an external power supply, and then use the cable to connect the effector power supply and the effector. Size: Approx. 16.5 x 5 x 3.3cm / 6.5 x 2 x 1.3in