AC Adapter This is a device that converts household power (alternating current) into direct current power that electronic devices can use. Detailed Explanation * Input: AC 100-240V 50/60Hz 0.3A * This AC adapter supports a wide range of voltages from 100 volts to 240 volts AC. This means it can be used not only in Japan but also in many countries around the world. * The frequency can be either 50Hz or 60Hz. * 0.3A indicates the maximum current this adapter consumes during input. * Output: DC 12V 1A * This is the specification of the power that this AC adapter converts and supplies. It can supply a voltage of 12 volts DC with a current of 1 ampere. This is used to supply power to compatible electronic devices. * Indoor Use Only: * This indicates that this AC adapter is designed for indoor use only. Use outdoors, where there is moisture, water droplets, or extreme temperature changes, is not recommended. * PSE: * This is an abbreviation for "Electrical Appliance and Material Safety Law" and is a mark indicating that the product meets the safety standards required for electrical products sold in Japan. This mark indicates that this AC adapter complies with Japanese safety standards. This AC adapter is commonly used to supply power to various electronic devices that require a 12V DC power supply, such as small LED lighting, routers, and external HDDs. Thank you very much for viewing. We appreciate your consideration in purchasing this product.