Portable Hand Crank Dynamo Charger Emergency USB Generator High Power

Specification：Material: Metal. Size: approx 125*80*85mm/4.92" X 3.15" X 3.34"(L*W*H). Voltage/Current: 3V/6.6A, 5V/4A,6V/3.3A, 9V/2.2 A,12V/1.6A, 15V/1.3A. Max power: 20W Portable：Small size, easy to carry, solves the difficulty of pulling wires outside, and is extremely convenient to use Optional Interface：A variety of interfaces, are free to choose the interface use that matches your power equipment High Power Generation Efficiency：Power generator strong, can meet your general small power needs Save Time And Energy：High-quality shaft, saving time and effort