Balance Beam Style Hot Air Stirling Engine Model with Voltage Digital Display Meter and LED Bulb Compact, handson Stirling engine kit that demonstrates thermal to mechanical to electrical energy conversion while serving as an attractive desktop display. Precision metal parts and a thickened quartz glass heating cylinder combine for reliable operation driven by the included small alcohol lamp. The builtin voltage digital display and LED bulb let you monitor and observe generated electrical output in real time. Key benefits Visual, handson demonstration of thermodynamic and mechanical principles for STEM learning and hobby exploration. Readytorun electrical feedback: the digital voltage meter shows output while the LED bulb illuminates during operation, making principles easy to observe. Durable materials and precision assembly deliver smooth, stable rotation powered by a compact alcohol flame. Dual purpose as an educational tool and an elegant desk ornament for home, classroom, or office. What makes this model stand out Balance beam hot air Stirling design for clear visualization of reciprocating motion and energy conversion. Precision metal construction with a brushed aluminum alloy style base and stainless steel connectors for stability. Thickened quartz glass heating cylinder and spare glass tube and piston liner included for maintenance and longer product life. Simple assembly with basic tools; suitable for learners and adult hobbyists seeking a compact working generator model. Specifications Color: As shown Material: Metal and quartz glass Product dimensions: 16.5 x 9.5 x 12.5 cm Product weight: 880 g Package dimensions: 23 x 13.5 x 16 cm Package weight: 1100 g Packing: Box Recommended age: 16 and up. Users under 16 should operate with adult supervision. Included in the box 1 x Stirling engine model (balance beam style) 1 x Alcohol lamp 1 x LED 1 x Bulb 1 x Spare glass tube 1 x Spare piston liner 1 x User guide Function and compatibility Heat source: small alcohol lamp provided; alternative similar lowtemperature heat sources may be used with caution. Electrical output: lowvoltage generation displayed on the included digital meter and used to light the included LED bulb. Assembly: simple installation required; follow the user guide for safe setup and operation. Practical use scenarios Classroom demonstration: Show students realtime conversion of heat energy to mechanical motion and electrical output, with a visible voltage readout for experiments. Hobbyist project: Build and run the model on a workbench to explore engine tuning, piston behavior, and smallscale generator characteristics. Office or home display: Use as a conversation piece on a desk or shelf that also functions as a working miniature generator when heated. Safety notes Operate on a stable, heatresistant surface and follow the included user guide for safe handling of the alcohol lamp and hot glass components. Allow components to cool before touching or performing maintenance.