By reflecting sun light the satellite could pass light to earth.
Report:
It could replace urban areas street lights and can save $170 million a year cost .
This MOON can illuminate 45 square kilometres of earth.
This mission will be launch by 2020 from Xichang satellite Launch Center in Sichuan.
Three more MOON will launch if first try executes well.
China is not only one country to try to move sunlight to earh. In 1990 Russian scientists was try to make gaint mirror to reflect sunlight to earth