This is a kind of quality wind turbine, which adopts efficient motor and planetary gear transmission, with high working efficiency. Easily turn on a bunch of LED lights by hand crank. It fits to make emergency lighting power supply, rechargeable, test, teaching, hydroelectric device, etc. It can be applied to make emergency lighting power supply, rechargeable, test, teaching, hydroelectric device, etc. You can have a try. Features: Made of premium materials, firm structure, wear-resistant and stable performance. Adopts efficient motor and planetary gear transmission, with high working efficiency. Simple construction, easy operation. Easily turn on a bunch of LED lights by hand crank. It can be used as emergency lighting power supply, charging, experiment, teaching, hydroelectric generator. Can also be used to do a small experiment, can be used as a charging device for small capacity battery, etc. Specifications: Name: Wind Power Dynamo Material: ABS + Metal Color: Black + Silver Output Voltage: 12V, 24V Max. output current: 1500mA Max. load power: 20W Item size: 130 * 35 * 35mm / 5.12 * 1.38 * 1.38in Package size: 150 * 50 * 50mm / 5.91 * 1.97 * 1.97in Package weight: 310g / 10.93oz Packing list: 1 * Wind Power Dynamo