Features: Generate Your Own Electricity with Micro Hydro-Generator - Charge your small battery, 12V radio, and LED lights with this DIY water flow turbine-generator. The generator- is proportional to water pressure and has a peak-voltage of 80V. Perfect for Outdoor Enthusiasts and Emergency- Preparedness - This micro hydro-generator is a great addition to any camping or emergency-kit, allowing you to generate electricity from flowing- water sources. Versatile Applications - Use this generator- to power- up your LED lights, charge your mobile devices, or even power- up your 12V radio. Easy- to Install and Durable - Made- from high-quality plastic, this micro hydro-generator is easy- to install and has a long service life. Specifications: Water Pressure Resistance: 0.35MPa Operating Voltage- Range: DC5~24V Insulation Resistance: 100MΩ Accuracy: 0.3~10L/min- Flow-Pulse Characteristic: (15x Q-2)±2% Q=L/MIN- High Level DC4.7V in Output Pulse (Input Voltage- DC5V) Output Pulse Duty Ratio: 50%±10% Size: Approx. 6.3x1.8x3.7cm/2.48x0.71x1.46in Package Includes: 1x Flow Sensor note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.