Feature: 1. Multi Color LEDs: A Stirling engine equipped with multi color LEDs is mounted on the motor, and the power supply will drive the multi color LED light through the wires. 2. Fine Workmanship: Well made, this frame is CNC finished, the appearance is exquisite and beautiful, and the texture and beauty are combined. 3. Simple Operation: Fill with 95% alcohol and light it. Let the light burn on the cylinder at the rounded end for about 60 to 120 seconds, then gently push the wheel to run. 4. Uses: Wide range of applications, suitable for children's science projects, physical machine learning, teacher demonstration props, etc. 5. Great Choice: Using sophisticated production technology, it can not only be used as a perfect decoration, but also as a birthday gift for friends, family members, parents, children, etc. Specification: Item Type: Stirling Engine Motor Model Material: Stainless Steel Purpose: Physical Stirling Power Conversion Science and Education Model. Package List: 1 x Generator1 x Tweezers1 x Alcohol Bottle1 x Alcohol Cover1 x Measuring Tube1 x Lampshade1 x Rope 3 x Hex Wrench3 x Diode4 x Rings1 x Tube1 x User Manual