Wide applicability Ideal for middle and high school physics demonstrations and electronic experiments. This hand crank generator provides a clear, intuitive demonstration that helps students grasp complex concepts. Scientific demonstration Designed to show the working principle of a generator. It demonstrates how mechanical energy can be converted into electrical energy, making it a strong instructional tool for schools. Efficient functioning Operates on a straightforward principle: rotating the armature rotor in a permanent magnetic field generates current that lights the LED when the handwheel is turned. A practical, demonstrable device for hands-on learning. Compact and user-friendly Includes a base, armature, pole shoe, magnetic field, brush, handwheel, and load plate. Its compact structure enables easy connection and operation, enhancing user comfort and convenience. What you get A concise, reliable generator built for classroom use, designed to withstand frequent demonstrations and student interaction. Use scenarios - Classroom physics demonstrations to illustrate electromagnetic induction and energy conversion. - Electronic experiments and small circuit projects that require a portable generator with a visible load (LED) indicator. - Outreach events or science fairs as a compact, easy-to-operate demonstration tool for audiences.