STEM Stirling Engine Model, Dual Cylinder Engine Model Generator with Voltage Display and LED Light, Aluminum Alloy Desktop Collectible Gift for Hobbyists

【Dual Cylinder Stirling Engine Generator】：This Stirling engine features dual heating cylinders and dual power cylinders placed side by side with a built-in generator. It powers LED lamp beads and includes a digital voltage display to show real-time output, blending scientific demonstration with aesthetic mechanical design 【High-Quality Precision Build】：Made with 6061 aluminum alloy, SUJ alloy steel pistons and cylinders, and thick quartz glass heating tubes, this model is finely crafted with anodized surface treatment. Its precise machining ensures smooth and reliable operation while showcasing a rich metallic luster for visual appeal 【Educational and Scientific Value】：As the flywheel rotates and LED lights glow, this model vividly demonstrates the principle of energy conversion. It serves as an excellent teaching tool for classrooms, STEM education, and science experiments, helping learners understand the mechanics and structure of Stirling engines 【Easy to Operate and Demonstrate】：Simply fill the alcohol lamp with 95% alcohol (no more than 2/3 capacity), light it, and preheat the cylinder for 30 seconds. With a hand turn of the flywheel, the engine starts running. Clear instructions and safe operation make it suitable for students, hobbyists, and educators alike 【Perfect Gift and Collectible Model】：Recommended for ages 16+, this Stirling engine is both an educational toy and a stylish desktop decoration. With its superior craftsmanship and scientific value, it makes an ideal creative gift for family, friends, or children on occasions like Christmas, birthdays, or science fairs