Features: Generating electricity through water Flows, easy to install, suitable for various types of faucets. Control power of water flows with our intelligent Water Microgenerator. Efficiently generate electricity for your bathroom need. Our Water Microgenerator features a wide flows ranging and operates at a low voltages. Sustainable power generation without compromising performances. Our Water Microgenerator offer a sustainable waying to generate power. technology that positively impact the environment. From shower to handwashing, this device seamlessly generates electricity use water. Specifications: Materials: Plastic Size: about 8.5x5cm/3.35x1.97inch Flows ranges: 2-10L/minutes Voltage: AC2-7.5V Current: 5-60mA Package Includes: 1pc Bathroom Digital Display Generator note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.