Feature: 1. LED LIGHTS, WITH MOTOR MOUNTING: The stirling engine is equipped with LED lights. Due to the heat of the high grade alcohol, the engine will run and generate electricity. The power will run through the wires and drive the LED lights to emit light. This is a very interesting and imaginative toy. 2. FINE CRAFTSMANSHIP: The board is made of pine, manufactured with fine milling; the bracket is made of molded steel, sturdy; the flywheel, ventilated piston, aluminum alloy fine carriage, fine milling, texture and beauty of the dual combination of 3. PREMIUM MATERIAL: Rods made of stainless steel; aluminum alloy cylinder, power cylinder and power piston dynamic connection group material fine milling surface after special treatment, high hardness . Please do not run at high speed and long time. 4. SIMPLE OPERATION: Fill the alcohol combustor with 95% alcohol (this fuel is recommended) and light it (support 75% medical alcohol, but its power will be weaker than 95% alcohol). Let the lamp burn the cylinder for about 20 seconds, then gently push the wheel. It can run continuously for more than 8 hours without damage. 5. STRONG PACKAGING, WOODEN BASE: The glass tube is individually packed to avoid damage during transportation. Easy to remove the package and put it back in place. The wooden base is bare, you can let your imagination go wild and stain it with your favorite color. 6. MULTIPLE USES: Has a wide range of applications as children's science projects, physics or mechanics learning, demonstration props for teachers' classrooms, birthday presents for friends, family, parents, kids and more. Specification: Item Type: Stirling Engine Model Material: Aluminum Alloy, Glass, Pine Wood. Package List: 1 x Manual 1 x Main Engine 1 x Alcohol Cylinder 1 x Alcohol Lamp Wick Cord 1 x Alcohol Cylinder Cover 1 x Wire Clip LED Bulb 1 x Dropper 2 x Bulb 1 x Glass Tube 1 x String Lights