dad gift ,boy gift, birthday gift , Stirling Engine Generator LED Light Electricity, Science Toy

Hot Air Stirling Engine with LED light generator – JAJ1056
. https://www.etsy.com/shop/jajhobby
~Models & Kits
. This engine come with a small generator motor & a LED light.
· It able to generate electricity which enough to light an LED light.
· Students can learn how a Stirling engine generator works .
. Ready to run
. Green light
. Model Engineering Kits
. Teaching kits for Schools
. Classroom Educational Kits
. Educational kits for schools
. Stirling Engine Generator
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Engine is fired by denatured alcohol burner . Heat is applied to the end of the glass cylinder . The cylinder is air-tight. Therefore air in the cylinder is permanently sealed inside the engine. This fixed amount of the air is heated & cooled , causing it to expand & contract , this driving the piston.
As the displacer moves up , the air in the cylinder moves down to the hot side , so the air pressure inside the cylinder increase , pushing up on the piston .
As the displacer move down , the air in the cylinder moves up to the cool side , so the pressure inside the cylinder decrease, pulling down on the piston.

Specification:-
Weight : 200g
Sizes : 120mm x 70mm x 80mm
Material : Cylinder – glass tube ; Base – wood ;Others – Aluminium
Package included :-
1 x stirling model
1 x aluminium burner

Video - https://youtu.be/OxxyLEQ4_5U