Renewable Energy Demo: Designed as a hand crank generator, this device serves as a versatile tool to showcase energy transfer dynamics with a steady electrical output. It is ideal for constructing circuits and reinforcing scientific knowledge for students or enthusiasts in experimental workshops or homebased projects. UserFriendly Operation: The crank generator offers effortless plugandplay operation. A small motor power supply is readily accessible to meet continuous DC power needs, making it suitable as a miniature experiment tool in educational or hobbyist settings and reducing setup complexity. Sturdy Power Solution: The DC generator delivers consistent power through wearresistant bearings, providing laboratorygrade durability for longterm use. It is well suited to environments requiring uninterrupted energy supply, such as remote fieldwork or backup systems. Electromagnetic Demo Tool: The hand generator functions as a versatile science exploration tool for energy conservation experiments and clear demonstrations of electromagnetic induction. Its use supports interactive STEM education, helping students grasp complex concepts through active participation in various learning scenarios. Use scenarios: Inclass demonstrations and circuitbuilding activities to illustrate energy transfer and electromagnetic induction. Homebased projects or makerspace experiments requiring a portable, reliable DC power source. Remote fieldwork or backup power applications that need steady, uninterrupted power delivery.