Lighting refers to the use of artificial light sources alone or in combination with natural light to provide adequate indoor and outdoor illumination. Lights can be categorized by type, location, control method, shape, function, and luminaire. The main purpose of lighting is to provide visibility, brighten a dark space, and create different atmospheres. For example, a bright white light may be used to create a feeling of cheerfulness, while a dim red light may be used to create a feeling of romance. Lighting can also be used to emphasize certain elements or objects in a space, such as artwork and architectural features. There are various types of lighting, including incandescent, halogen, LED, and fluorescent lights. Each type has its own advantages and disadvantages. Incandescent lights, for example, are an affordable option, but they require a lot of energy to produce light and generate a lot of heat. LED lights, on the other hand, are energy-efficient and long-lasting, but they are more expensive than other types of lights. When selecting lighting for a space, it is important to consider the purpose of the lighting, the available budget, and the aesthetics of the space. Additionally, it is important to consider the type of light that will best illuminate the space, how the lighting will be controlled, and the number of lights needed to achieve the desired lighting levels. Lighting plays a crucial role in making a space functional and aesthetically pleasing. It can create a welcoming atmosphere, emphasize certain elements, and make a space brighter and safer. It is important to choose lighting that is both energy-efficient and aesthetically pleasing to ensure that the lighting system meets the needs and preferences of the space.