The JOYO ZGP-W is a compact power converter, specially designed as a power supply for effects pedals. It can change your cell phone charger or power bank into an effects pedal’s power supply instantly. Besides, it can be installed on effects pedals or other devices easily, supplying stable and clean voltage. JOYO also includes a USB input cable in the box, so that you can use it to get center minus DC 9V voltage by connecting your cell phone or power bank to the ZGP-W. The output current reaches up to 400mA, quite convenient for supplying power to digital pedals. ZGP-W stands out for adopting a special circuit that filters out ripple noise. This power converter features reversed polarity, overload, high voltage, low voltage and short circuit protection. If it malfunctions, then the LED indicator will turn off automatically and protect the circuit, and secure your devices accordingly. It also supports wide input voltage and works from 5-9V DC. It is made of high quality materials that ensure stable performance.