HIGH QUALITY MATERIAL: The DC water flow pump is made of high quality material, durable and with advanced technology to pursue excellence. TRANSPARENT CASE: Our hydro generator has a transparent case, you can view the turbine and power generation in real time, and also enjoy your DIY handmade works. SHINY AND BEAUTIFUL: This micro generator has a smooth and neat appearance, no rust or scratches, suitable for children's science demonstration or charging dry batteries. COMPACT DESIGN: The pump turbine generator has a compact structure design, the close connection between the turbine and the motor can convert energy with high efficiency, and its noise is low, and its working performance is stable. USAGE INSTRUCTIONS: The power generated by the generator is directly proportional to the water pressure. The higher the water flow, the higher the output power. Suitable for circuits with voltage regulators., Weight: 0.1984160358 Pounds, Manufacturer: Regun