This International Power Adapter has US / EU / UK / AUS plugs, designs with wide voltage: 100V-250V AC. Max Power: 1500W (250V/6A), is suitable for more than 200 countries. Can connect with plug, laptop, low power hair dryer and electronic devices. Please note: This product is not suitable for some high performance devices, please check the power before use. Built-in Auto-Resetting Fuse How the fuse works: When there is a short circuit or overload, the heat increases from the high current flowing through the fuse. If the temperature is too high, the fuse wire will fuse. And the current will be cut off. When the disturbance is released, the self-recovering fuse wire cools again and it is reconnected and a new return path is established. Smart Chip for Intelligent Distribution This usb power adapter has built-in IC chip, can automatically identify the current and voltage and choose the appropriate charging mode accordingly. Provides protection for the devices. 3 USB + 1 TYP-C, Max.2.4A on each USB port and 3A on Type-C (Type-C for MACBOOK PRO) The built-in safety shutters protects the user from direct contact with live parts at the socket. By moving the selector switch only one plug can be used, the other plugs are automatically locked. Specification: Input voltage: 100V-250V Maximum carrier current: 6A Rated power: 100V-630W / 250V-1500W 3 USB & 1 Type C output: 5V / 5000mA (common) Suitable for two-hole plug-in devices No voltage conversion Precautions: This product does not have a voltage conversion function (AC-AC). Please make sure that the power of the outlet you are using has the correct voltage to prevent possible damage to your device or other security risks.