Description:

【Premium Material】Solar Power Light Pressure Windmill is made of glass, lightweight
【Size Information】Solar Power Light Pressure Measurement Tool height measures approx 13.8cm/5.43inch, sphere in diameter 7.5cm/2.95inch, the base in diameter 6.5cm/2.56inch
【Feature】The glass radiometer solar windmill features a vacuum sealed glass windmill that can rotate on its own in response to light and reverse its rotation in cold wind.
【Principle】The light black fan absorbs heat energy while the white fan releases it, driving all four fans to rotate
【Physics Educational Tool】Professional physics teaching tool to demonstrate scientific principles, green energy experiment tool

Package Includes:

1 Solar Light Pressure Windmill Ornament

Note:

Please allow slightly errors 1-2cm differences due to manual measurement.