Features 1、Multi Color LEDs: The stirling engine motor model educational toy is equipped with multi color LEDs that you can easily install on the motor yourself. Powered by the heat of high grade alcohol, the engine will run wildly and generate electricity, which will then drive the multi color LED lighting. This is a fun and imaginative toy that offers an engaging hands on experience. 2、Exquisite Craftsmanship: The base plate is made of brushed aluminum alloy for a slick and elegant look, while the frame is CNC finished and sandblasted for durability. The aluminum alloy flywheel, stainless steel cut rods, and custom thickened glass heating cylinder ensure long term usage without pressure. The exquisite design and combination of texture and aesthetics make this model a standout piece. 3、Simple Operating: Simply add your 95% alcohol (recommended fuel) to the burner and light it. Let the lamp burn the round cylinder for about 60-120 seconds, then gently push the wheel, it will run smoothly like charm. In addition to stirring, you also get the added bonus of peace of mind with the included spare glass tube and O ring for quick and easy replacement in case of damage. 4、Wide Application: At this price point, the stirling engine motor model is a stunning and exceptional product. Its elegant gift packaging adds an extra touch of class. With a wide range of applications, it makes an excellent gift to children's science projects, physics or mechanics learning, teacher demonstrations in the classroom, birthdays for friends, family, parents, and children. Many of our customers come from schools, colleagues, and more. 5、Educational And Entertaining: The hot air stirling engine motor model offers a blend of educational value and entertainment, providing a hands on learning experience for enthusiasts of all ages to explore the principles of physics and mechanics in a fun and engaging way. Share the joy of discovery and experimentation with this unique and captivating motor model. Specification Item Type: Stirling Engine Model Material: Aluminum Alloy 1. Exquisite workmanship, the actual market is one of the highest mirror light surfaces effect. 2. Excellent aluminum, CNC high speed machining, high mirror surfaces plating, floor edge chamfering and other detail processing. 3. Full English Manual 4. High Speed, Stable Performance 5. No installation, play when you get it. 6. Strong Power 7. 3 Kinds of Lighting Effects: LED Color Flashing Bead Effect, Color String Light Effect, LED Bulb Effect 8. Motor Output 2.5-4V, 0.3-0.8A ( Non Steady State ) Package List 1 x Generator 1 x Glass Tube 1 x Replacement Bulb 1 Set x Alcohol Lamp 1 x Bulb Holder 1 x Light String 1 x Rubber Ring 2 x Droppers