High Quality: The water turbine generator is made of high quality material. Good quality can provide a safer guarantee for your life Excellent Appearance: The generator surface is clean, no rust, no scratches when significant, sturdy structure, you do not worry about quality issues Relevant Parameters: The output voltage is 12V. The outlet opening maximum pressure is 1.2Mpa. This micro water turbine generator can give the 12V radio power charging, power supply to the 10W LED lights, the maximum charge current 220mA Mechanism: The output voltage with no voltage regulator is proportional to the water pressure. This means that the higher the water pressure, the higher the voltage. It can be a simple power supply Note: There are two types of lithium batteries on the market, with a charge management chip, a chip without charge management, lithium battery needs charging management chip electrical impulse, or prone to explosion, Manufacturer: Yosoo Health Gear