1. Scientific experiments toy for early learning and intellectual development, featuring solar powered models for hands-on exploration of energy conversion. 2. Wind generator model — an educational tool that helps children understand the differences between solar and wind energy, includes a solar powered windmill model for practical demonstrations. 3. Farm windmill model — plastic construction for durability and long lasting use, mini wind turbine suitable for repeated handling and display. 4. Hand crank generator for kids — portable design and compact size, easy to transport and store, windmill model toy that encourages manual power testing. Use scenarios: - At home: run simple energy experiments by exposing the solar powered model to sunlight or by turning the hand crank to power the windmill, reinforcing energy conversion concepts. - In the classroom: use as a hands-on renewable energy project to compare solar and wind outputs and deepen understanding of energy sources. - On the go: a portable science kit for science fairs, clubs, or travel, enabling quick demonstrations anywhere.