Miniature wind demonstrator with LED feedback — a compact tool for teaching and handson study of airflow and wind power. Key benefits Makes abstract airflow visible: rotating blades and an integrated LED provide immediate, easytosee feedback during airflow experiments and demonstrations. Simple, classroomready setup: the compact, miniature build fits on desks and workstations for quick demos without complex equipment. Encourages active learning: supports experiments and projects that introduce renewable energy concepts and observationbased investigation. What it does (function and performance) Demonstrates wind power flow by converting airflow into blade rotation; the LED lights up when the blades turn to indicate motion and successful airflow transfer. Provides clear visual confirmation of working airflow in demonstrations and experiments, helping students and hobbyists link cause (airflow) to effect (rotation and light). Important attributes Size: miniature and compact, designed for desk demonstrations and smallscale study projects. Compatibility: appropriate for classroom teaching, lab exercises, science fair exhibits, and study setups focused on airflow and introductory renewable energy lessons. Design: straightforward mechanical operation with an LED indicator that glows during blade rotation, offering an immediate, observable signal of performance. Practical use scenarios Classroom demonstration: Place on a desk during a lesson about wind energy to show how airflow causes rotor movement and produces a visual LED cue. Student lab experiment: Use in airflow experiments to test how different wind speeds or angles affect rotation and to record when the LED activates. or sciencefair project: Include in a handson project to illustrate basic renewable energy principles and to demonstrate causeandeffect to judges or viewers. What customers gain A dependable, easytouse teaching aid that turns invisible airflow into a visible result. A compact, portable tool suitable for demonstrations, experiments, and smallscale educational projects without complicated setup.