The commercial lighting comes from the birth of the commercial occasion, to service the requirement of commercial occasion lighting, produced for commercial occasion lighting system; From the function can be divided into the general commercial scene lighting, the emphasis on commodity lighting, the decorative lighting; From the location can be divided into internal commercial environment, the exhibition area(showwindow), the population area, the display area and the external environment landscape lighting; From the layout can be divided into the directly lighting, the semi-directly lighting, the diffused lighting, the semi-indirectly lighting, the indirectly lighting and so on.