Material: Aluminum alloy Dimensions: (Length x Width x Height) 13cm x 13cm x 11.4cm Voltage: 220V Power: 300W Outlet diameter: 11.4cm Inlet diameter: 20cm (thread) The amount of electricity generated by the generator depends on the water pressure. Water pressure determines power output, which can be up to 300 watts. Actual power generation depends on water pressure. Water pressure depends on how far the water falls. Pipe diameter: 20mm The power of the generator depends on the clearance. The clearance should be at least 10 meters. Above, the higher the water level difference and the higher the water pressure, the higher the power generation will naturally be. Compared with the 25mm pipe diameter, the drop height of the 25mm pipe diameter generator is 50 meters. A hair is about 50W, and 100m is about 100W, which is based on the vertical drop. As for your length, how long? It depends on your vertical height. This small generator has a 2-year warranty against water short circuit. There is no guarantee that short circuits in the water supply will not occur if installed and used according to our instructions. Installation method: Connect the water pipe and the generator water outlet to the PVC drainage pipe. Drain the water. Don't let the water fly everywhere. Find something to cover the generator head to generate energy. The machine should be installed in a place where rainwater cannot soak it. Pay attention to whether the water pipes are leaking. Do not spray water on the generator head. Please wrap the leaking water pipe tightly to prevent water from spraying onto the generator head. Pay attention to leaks in water pipes. Do not spray water on the generator head. Keep the generator head from water spraying onto it. If there is water spray on the generator, wrap the spray location. Keep the generator head dry. Do not spray water on the generator head. Products include------------------------------------------------ -------- - -------------------------1 x Hydraulic Generator 1 x Manual Friendly reminder Due to the color display of different monitors , photo colors may vary slightly from actual product. Dimensions are measured manually, please allow slight measurement errors. If you have any additional questions or need more information, please feel free to contact us.