AC Adapter Input: 100-240V 0.20A 50/60Hz, DC Output: 9V 3A Amps. This power supply cord also compatible 9V 0.5A 1.2A 1.5A 1.8A 2A 2.2A 2.4A 2.6A 2.8A 200mA 600mA 800mA 1600mA 2500mA 2700mA and more power adapter with ampere equal to or lower than 3A (3000mA). Adapter Polarity: Inner Positive(+), Outer Negative(-). Note: if your device is inner negative(-), please take a Basicvolt polarity reverse cable with it This 9V 3A wall transformer charger will equipped with 10 interchangeable tips, compatible with most of household electronic devices and replace 90% of other 9V 3A 3000mA Universal AC/DC Adapters. Its work for Arduino Boards (UNO R3/ Elegoo UNO R3/ IEIK UNO R3, MEGA 2560, Duemilanove), Crosley Cruiser Portable Turntable Record Player , Schwinn Proform Bike, LED Strip Light, Webcam, Baby Monitor, Security Camera, Router, Electronic Kitchen Scale and more 9V electronic devices This universal charger with multiple different size connectors can replace most single power adapte