1、WORKING PRINCIPLE: Educational stirling engine is equipped with LED lights, due to the heat of alcohol, the engine will run wildly and generate electricity. The power will run through the wires and drive the LED lights to emit colored light. 2、EASY TO OPERATE: Fill the alcohol burn with 95% alcohol(this fuel is recommended) and light it,let the lamp burn the cylinder for about 20 seconds,it will start to run,then gently push the wheel,it can run continuously for more than 8 hours without damage. 3、DIY: The wooden base is blank and unpainted, you can let your imagination go wild and stain it with your favorite color or stain it with your kids or friends. 4、HIGH HARDNESS: The base plate is made of pine wood with fine grinding, the bracket is made of mold steel, sturdy, the dynamic connecting group of aluminum alloy cylinder, power cylinder and power piston is made of finely ground material with special surfaces treatment, high hardness. 5、WIDE APPLICATIONS: The Stirling engine motor model has wide applications as a science project for kids, physics mechanics learning, demonstration props for teachers' classroom, birthday gift to friends, family, parents, kids, etc.