Simple operation, use 95% alcohol filled alcohol lamp to heat the piston tube, and the dry combustion air expands to generate power, driving the flywheel to rotate rapidly, thereby lighting the lamp. It has a wide range of applications for children science projects, physical/mechanical learning, teacher demonstration props, birthday gifts for friends, family, children, etc. In addition to the sterling engine, it is equipped with an alcohol lamp, a 5V 5W large bulb, a glass tube to replace the cylinder and a fan, making it more interesting Use thickened quartz glass as the cylinder, durable and safe enough for long-term use.