Due to the smart control function of led high bay , the building itself can be a display screen, showing information, advertisement, simulated forest or mountains. With such cloud technology, the city will no longer be a cold and densely packed concrete jungle, but a naturally like jungle. Walking in such a city with smart cloud control will be an enjoyable thing which is fascinate without dark and boring concrete any more. The smart light control of LED Lights can turn the light seen by people into pure natural light. The light of shining flowers and green plants can even ease the tiredness of human eye. By that time, the city light will no longer be the light pollution maker, but rather the pleasant view for the eye.