Specifications: Input: 100-240V 50-60Hz (2-Flat-Pin Plug) Output: 9V 1500mA Extended cord: 6.6feet / 2.0meters Connector Size: center positive5.5 x 2.1mm Product Features: ✔CE FCC Approved ✔Over-Voltage protection ✔Over-Load protection ✔Short-Circuit protection Description: High quality wall AC to DC power supply, with input voltage of 120-240V AC and output of 9V 1500mA.Suitable for supplying the Arduino boards (UNO, MEGA 2560, Duemilanove). Fit most projects less than 1500mAwith a center-positive 5.5 x 2.1mm barrel connector;widely used in:Wireless router, children's vehicle charging, alarm, electronic kitchen scale and other equipment. Note: 1. Works with devices required 9V and less than 1500mA of DC power and physically fits the plug.Please make sure the connector size 5.5x2.1mm can fit your applications before purchase 2. Does notfits pedals,Piano keyboards with power ports of negative-tip.