Feature:1. WITH LED LIGHT: LED light stirling engine with LED light, due to the heat of high grade alcohol, the engine will run like mad and generate electricity, the power will go through the wires and drive the LED light to emit light.2. SIMPLE OPERATION: Fill the alcohol burn with 95% alcohol (this fuel is recommended) and light it (75% alcohol is supported, but its power will be weaker than 95% alcohol). Allow the lamp to burn the cylinder for about 20 seconds, then gently push the wheel and it will run for more than 8 hours without damage.3. DIY BASE: The wooden base is bare, you can let your imagination go wild and stain it with your favorite color or stain it with your kids or friends.4. WIDE APPLICATIONS: Hot air stirling engine motor model has a wide range of applications, can be used as a prop for children's science projects, physics mechanics learning, and teacher's classroom demonstrations.5. STRONG AND DURABLE: Stirling engine is made of aluminum alloy, CNC base plate and glass material, the plate is made of pine wood, finely milled manufacturing; the bracket is made of molded steel, sturdy, the flywheel, ventilated piston, aluminum alloy fine compartment, finely milled, the dual combination of texture and beauty, more stable.Specification:Item Type: 4 Cylinder Hot Air Stirling EngineMaterial: Aluminum Alloy, CNC Plate, GlassSize: Approx. 195 x 105 x 135mm / 7.68 x 4.13 x 5.31in Support: 75% Alcohol, But Its Power Will Be Weaker Than 95% Alcohol.Special Note: Because the fire is not stable, the machine is equipped with USB output interface does not support cell phone charging .Package List:1 x Host2 x Alcohol Cylinder2 x Alcohol Wick Rope2 x Alcohol Cylinder Cover1 x LED Bulb1 x Dropper2 x Bulb2 x Glass TubeNote:Do not wear at high speeds and for long periods of time