Custom 2 Cylinders Hot Air Stirling Engine Model Generator with Voltage Meter & LED Lamp Bead Features: Unique Design: This two-cylinder, balance-type structure has a small generator that runs on alcohol heat. The engine runs quickly and steadily, producing electricity that powers a brilliant ..

Custom Stirling Engine 2 Cylinders Hot Air Generator Model with Voltage Meter LED Bulb Science Experiment Educational Toy Features: Unique Design: This two-cylinder, balance-type structure has a small generator that runs on alcohol heat. The engine runs quickly and steadily, producing electricity ..