It uses Daylight Illuminance which is Useful to indicate the quality of the natural light which has been assembled to consider the effectiveness of using natural light in the building.
Takes Useful Daylight Illuminance which is able to measure the quality of natural light has been the combination of the efficient use of natural light in the building.
It must be used Useful Daylight Illuminance which is measured can be evaluated the quality of natural light, get together to consider the efficiency of using natural light in the building.