Lighting is an important part of building design and interior decoration. It can create an atmosphere and impart specific messages or meanings. Good lighting can emphasized and highlight architectural features, create interest and beauty through shadows, direct attention to special points, create soft, gentle, and indirect lighting, provide adequate illumination, or provide dramatic contrast. Lighting in residential premises such as homes and apartments plays a very important part of giving the occupants the desired atmosphere. Through the use of varied types of lighting the home can be set to the desired mood or atmosphere. In residential buildings, lighting of the interior walls, ceilings, and items such as furniture can be adjusted to imparts a pleasant feeling and an inviting atmosphere. In commercial venues where people are present, good lighting is essential. Lighting must be carefully designed and adjusted to provide adequate illumination levels, to create pleasing atmosphere, and to prevent eye strain and fatigue. Generally speaking, lighting should be placed such that it is most beneficial for whatever the activity is taking place. Apart from providing illumination, lighting can also be used to enhance the safety of environments where people are present. Lights that automatically come on after dark, pathways or roads that are illuminated at night, and lighted stairways in hotels are all examples of how light is used to make environments safer. In conclusion, lighting is an important part of creating an atmosphere and imparting specific messages to building occupants. Adequate lighting is essential in both residential and commercial venues in order to ensure comfort, safety, and the desired atmosphere. It is critical to ensure that the design and placement of lighting is carefully thought out in order to get the desired result.