The output voltage is 12V. The maximum outlet pressure is 1.2Mpa. It can charge 12V radio and power LED lights with a maximum charging current of 100mA. Without a regulator the output voltage is proportional to the water pressure. Lithium batteries are divided into two types with charge management chip and without charge management chip. The surface of the generator is smooth and clean, without rust and scratches, and the structure is firm. Specification: Voltage: 12V Maximum working pressure: 1.2 MPa Working pressure: 01.0MPa Test pressure: 0.6MPa Temperature range: 0-80 degrees Celsius Flow range: 3.5-20 L/min (pressure: 0.05-0.2 MPa) Maximum output: 12 + / - 0.3 VDC, water flow 10 L/min Output voltage: 512+/-0.3VDC, water flow 4L/min Output Voltage Start Flow: 3 +/- 0.25 VDC Water Flow 3.5 L/min Dimensions: 84 x 46.5mm packing list: 1 x Hydro Generator