Description: 【Innovative DIY Science Kit】: DIY Scientific Experiment Kit is a hands on educational model that demonstrates the principles of hydropower generation. It's  for science experiments and encourages creativity and learning through assembly 【Design】: DIY project hydroelectric generate electricity model features a driven system where the rotation of the impeller drives, which in turn rotate the motor to generate direct current (DC). This process effectively illustrates mechanical energy conversion 【 Circuit Board】: The generated DC current is regulated by an circuit board, ensuring stable output to power connected devices like USB lights, making it a practical demonstration of electrical engineering concepts 【 Widely Used 】: Science kit can be used as a teaching model, science competition, science experiment model, educational assembly toys and so on. 【Sturdy Construction】: Made from sturdy ABS  materials, this diy project hydroelectric generate electricity model is sturdy for long term use    Size Chart:Length: 8.6cm/3.39inch,WIdth: 4cm/1.57inch,Heigth:15.1cm/5.94inch Package Includes: 1 DIY Scientific Experiment Kit Note: Please allow slightly errors due to manual measurement and different monitors.