Emergency Power Supply: This high-performance permanent magnet generator with a maximum power of up to about 20W is a power bank that can be powered by hand-operated and rechargeable. Practical Tool: The Crank Manual Generator is equipped with multiple output ports, and the maximum voltage of the direct output terminal is about 28V, it can be used as a field emergency power supply, charging cell phones,USB night lights and USB fans, radios, laptops, and many other convenient electronic devices. Instant Power Supply: You can generate power immediately by hand cranking when you need The Emergency USB Charger Generator, doesn't need to wait, suitable for quick power supply needs in emergencies. Compact and Portable: 5*3.39*3.46in compact size is easy to carry and store, the Hand-cranked Charging Generator suitable for outdoor activities or emergency use. Last for Years: The metal shell gives it excellent performance of waterproof, shockproof, and salt/fogproof so that it can generate power normally even under high altitude and low-temperature environments., Manufacturer: Levkitch