Features: High efficiency, long lifespans.Low flow loss and low water pressure. Each end has standard hose fitting that are 1/2" pipe thread. This is a generater not a pump it takes a good amount of water flow to get it to generate a small amount of electricity. As long as water flows, this device will charge the battery, but if you don't have water flowings, it will act as a motor and start running. Suitable for a variety of sensorS Faucets, shower room lighting and sounds system ,water heater, etc Specifications: Material: Nylon Size: Approx. 64.5x83.8x81.8mm/25.39x32.99x32.20inch Interfaces size: G1/2 Starting flow rate: 2liters/minutes Working water pressure:<2kg Maximums output current: 1.4Amp Voltages output: DC6V Power output: 210 milliwatts (4L/minutes) Battery capacity: 700mAh Maximums flow rate: 20liters/minutes (water pressure 2KG) Waterproof level: 4 Maximums output voltages: 8VDC Connection line length: 10mm Burst pressure: 20KG Working temperature range: 4°C~80°C Maximums usage range: 110°C Maximums 30min Battery type: Polymers lithiums battery Package Includes: 1x Small Hydroelectrics Generators 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.