Students manual technology creative invention Double solar fan scientific small production DIY materials

7 14 Years. Material: plastic/plastic. made in China. Brand: Tanmeng. Ability training: emotion, vision, intellectual development, manual brain, grasping, sensory, hand-eye coordination, other ability training, interactive toys, hearing, parent-child communication, interest cultivation. Item No. Double Solar Fan No. 3. Building toy type: assembled solar fan model. 3C configuration category: similar stationery toys under 14 years old. Specification: 9075170mm. Applicable age: Juvenile 7-14 years old. Product name: Double solar fan. Product material: plastic The baby is a material package, and detailed graphic printed instructions will be delivered!. Functional principle: The working principle of solar cells. When an object is exposed to light, the charge distribution state in the object changes to produce an effect of electromotive force and current. In this model, the circuit between the two battery panels and the motor is connected in parallel. When the solar panel is facing the sun