Lighting, in architecture and interior design, is the automated process of manipulating and directing light to create a desired effect. Lighting is an important part of the design process, not only because it provides visual aesthetic but because it can change the mood and atmosphere of a room. Proper lighting can create a sense of warmth, comfort, and security, while improper lighting can be cold, clinical, and unwelcoming. When lighting a room, the three primary considerations are task lighting, ambient lighting, and accent lighting. Task lighting is used to illuminate work areas and is usually adjustable in order to focus or soften light. Ambient lighting provides background illumination for a room and is usually diffuse and indirect. Accent lighting is used to draw attention to objects or artwork and can be done using lamps, ceiling lights, or spotlights. In addition to traditional lighting systems, there are also many new lighting technologies available. LED lights are becoming more popular due to their energy-efficiency and long-lasting durability. Smart lighting systems allow users to control lights from any device with internet access. Automated systems can be programmed to adjust lighting levels automatically based on the time of day or occupancy sensors. In summary, lighting is an important element of interior design, and can have a major impact on the look and feel of a space. By taking advantage of the latest technologies, lighting can be used to create unique and dynamic effects.