Your head can be obtained by filling the 75mm diameter pipe with 2KW power. If your 10 cm pipe is not already installed.
If the performance is good, it is recommended to use “double-tube double-jet oblique impact hydroelectric generator”. This is a second generation machine with a price of around 6,000 yuan.
Solve the lighting problem If it is one type, just use the old one "slope type". This is the first generation product. Its performance is not that good, but it is cheap and can be had for around 1500.