This is a micro hydropower generator that converts potential water energy into mechanical electrical energy and can help you charge various things. Features: 1. Micro hydropower generator that converts water's potential energy into electrical energy, mechanical equipment. 2. Three types of generators can be directly connected to the small battery, can charge the mobile phone, can charge LED lights, power, etc. 3. Appearance: cleaning of the generator surface, no corrosion, the structure is solid. 4. Low mechanical noise, does not disturb others. 5. The output voltage without voltage regulator is proportional to the water pressure. 6. Environmentally friendly, high efficiency and energy saving. 7. Long service life and long durability. Specifications: Type: 12V, 0-80V (optional) Output current: 220mA max. Line resistance: 10.5±0.5Ω Insulation resistance: 10MΩ. Maximum closed pressure: 0.6Mpa. Highest opening pressure: 1.2 MPa. Starting pressure: 0.05Mpa. End play: 0.2-1.0mm Noise: ≤55dB Generator life: more than 3000 hours 0-80V model: DC 0-80V output, voltage regulator without loop, voltage reaches 80V, can be directly connected to 10 W LED can be connected via 3-12V, can be directly connected to the small battery charge, maximum charging current 220mA. 12V model: DC 12V voltage regulator output, you can provide 12V wireless power, charging and power supply for LED. Item weight: 90g / 3.17oz. Package weight: 110g / 3.88oz. Item size: 86.5 * 49 * 32mm / 3.41 * 1.93 * 1.26in. The actual color of the item may differ slightly from the images shown on the website. 2.Caused by many factors such as the brightness of your monitor and light brightness. 3. Please allow slight deviations in the measurement data. Packing list: 1 * Generator