12V 5W Solar Exhaust Fan Air Extractor 5.6Inch Ventilator Solar Panel3418
16,73 €
DIY YOUR OWN SMART MODEL: powered models, solar toys, solar lights, solar displays, charging small DC batteries. It can be used for teaching purpose. EDUCATION: Solar panels are devices that absorb sunlight and convert solar radiation directly or indirectly into electricity through photoelectric or photochemical effects, it's perfect devices for science project.
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