☀This set comes with one pair of jumper cables with alligator clips at each end for quick and convenient connection.
☀Slowly rotate the crank one circle each second and the voltage could reach 3V that could easily lighten a LED.
☀This hand crank electricity generator could help kids to understand generation of electricity, quite suitable for adult and children to play together.
☀The voltage could reach 6V at most from a quite fast rotation, so rotate the crank faster might burn the LED.
☀Connect the generator to the resistor and the LED light, it would be a beautiful and small emergency light.