Conversion of mechanical energy into electrical energy Electromagnetic Induction Experiment School teaching inst ents. Usage: Can be used for primary school student experiments. The whole machine is made of plastic molding, and the small generator generates electricity by rotating the handle and light gears. Explain the scientific principle that mechanical energy can be converted into electrical energy. Usage: Hold the waist of the generator tightly with your left hand, and turn the handle with your right hand to generate electricity (the electric ball light up). The faster the handle rotates, the brighter the electric ball. When using as a power source, unscrew the electric ball from the generator, replace the wiring, and both ends of the experimental circuit power supply to use as experimental power source. Colour:As Shown Material:plastic Output current: 0.2A No load output 6.3V Size: 11x7x8.5cm Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 x Electricity Generator Model kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.