Retro γ-shape Stirling Engine Kit Generator with LED Lights - STEM Toy

Build Your Own Stirling Engine that Works - ENJOMOR Retro γ-shape Sterling Model with LED Light Features:Exquisite Stirling Engine: The Stirling engine is simple and elegant, with a retro and exquisite appearance, with a small generator, LED light-emitting diodes and light strings, and can DIY various lighting shapes,