Lighting is one important element of the interior design of a house. Lighting used for the interior design has derived from natural lighting and there is derived from artificial lighting. Natural lighting in a home design is utilizing sunlight into your home. Sunlight is also important because in addition to the aesthetic value but also as a factor that helps provide a healthy environment to humans. Therefore the design must also consider the elements of health for the residents. Especially how to design a house that has air circulation and sunlight are good. So in addition to the aesthetic value of the occupants will get the value of health. Interior Design.