Stable power for learning: This hand crank generator provides a steady DC output to support circuitbuilding activities and helps students understand energy transformation during experiments or projectbased learning. Plugandplay convenience: Delivers uninterrupted DC power to small motors with an ergonomic crank handle for comfortable use. A reliable companion for powering miniature experiment tools at science fairs or fieldwork with minimal setup. Durable, longlasting performance: Designed with wearresistant bearings to ensure consistent power delivery and laboratorygrade durability for longterm operation. Suitable for remote environments or backup power needs where continuous energy is required. Practical STEM equipment: A handson learning kit that enables exploration of energy conservation and electromagnetic induction. Enriches science education at schools or home labs and promotes engagement with fundamental physics through experimentation. Use scenarios In classrooms and laboratories, to demonstrate energy transformation, power small circuits, and guide handson physics projects. At science fairs or onsite demonstrations, to power miniature experiment tools and illustrate practical energy generation. In remote fieldwork or home laboratories, as a portable DC power source for small devices or as a backup power option for continuous operation.