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. Efficient and Eco-friendly: Compared with traditional large and heavy generators, this high-performance permanent magnet generator with a maximum power of up to about 20W is environmentally friendly, saves energy significantly, and ensures efficient performance. Instant Power Supply and Reliable: You can generate power immediately by hand cranking when you need it, doesn't need to wait, suitable for quick power supply needs in emergencies. It adopts human power to drive and multiple heat-dissipation holes can dissipate heat quickly, making it safe and reliable to use. Practical Tool: It 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, radios, laptops, and many other convenient electronic devices. Compact and Portable: 5*3.39*3.46in compact size is easy to carry and store, suitable for outdoor activities emergency Field Operations Rescue Operations Natural Disaster suse., Manufacturer: Candygou