[High Efficient]:High power USB charging generator, strong power generation. The faster the hand crank speed, the greater the power. The maximum power is about 20W, light weight, low noise, stable working performance. [Easy to Use]:The high-power generator adopts a metal shell to be more durable, non-slip foot pads are more stable, high-quality bearings, small and exquisite, easy to assemble and easy to carry. [USB Interface]:Energy-saving emergency crank generator with USB interface, which can charge mobile phones, USB night lights, USB fans, mobile power supplies and other items with USB interfaces. [Widely Use]:Portable hand-cranked generator can be used in field operations, field trips, rescue operations, natural disasters, survival training, emergency communication, long-term power shortage, tourism, emergency electricity, etc. [Note]:The output voltage of hand-cranked generator must be greater than the set voltage to stabilize the output set voltage. Please be sure to adjust the voltage to 5V before using the USB port external appliances. Material: Metal Weight: 758g/26.7oz Power generation speed: 2000 RPM Power generation: about 20W Corresponding voltage and current: 3V/ 6.6A, 5V/4A, 6V/ 3.3A, 9V/ 2.2A, 12V/ 1.6A, 15V/ 1.3A Package List:1 x Hand-cranked Generator