According to the latitude , longitude ,height of the building, according to the location of the sun moving building and block the formation of the shadow to calculate and control all of all shading devices, the angle adjustment by 365 days system clock. In summer, system control electric device to block out the strong sunlight, keep the indoor low temperature to prevent light pollution, less air conditioning; in the winter, with the sunshine warm light to help raise the room temperature, the less air conditioning to save a lot of energy. Automatically when lit with the brightness sensor with dim or turn off the lights automatically when insufficient light, brighter lighting, to ensure both constant illumination.

 E-Lighting automatically control environment lighting , air conditioning completed in accordance with 365 daily text clock default run-time, to meet requirement of different time ,such as the work, after work, late-night patrol. The system provides the timing function of time point, time period as well as weekly, monthly, annual and special holiday. Through timing function to ensure that the minimum energy consumption in the non-normal working hours. The daily operation mode can also be sub-periods to alternately open the different lighting circuits and extend lamp life, saving lighting maintenance costs.

 Office building divided according to different function and area, usually are office area, foyer, Manager''s Office (an independent office), meeting rooms, multi-purpose hall, the lighting of the various functional areas have different characteristics.