Lighting is the process of producing light in an artificial environment. With advances in technology, lighting has become an integral part of modern life, from indoor light fixtures to outdoor illumination. Lighting has many uses, such as providing illumination in a room or area, as a decoration to add ambiance, and to create a certain mood. In addition, lighting can be used to enhance safety by providing better visibility in dark areas. Lighting also provides energy savings by cutting down on the need for additional electricity. Indoor lighting can be classified into two main categories: task lighting and ambient lighting. Task lighting is used to help with specific tasks; for example, a desk lamp is a form of task lighting that helps with study or work activities. Ambient lighting, on the other hand, helps set a general level of illumination in a room and is often used to create an atmosphere, such as setting the mood for a romantic dinner. Outdoor lighting is primarily used to provide illumination in outdoor spaces, such as sidewalks, streets, and parks. In addition, outdoor lighting is often used to increase safety and security at night. With the development of the LED technology, outdoor lighting is becoming increasingly energy efficient, which helps reduce the use of in-home electricity. In short, lighting has become an integral part of modern life. It not only helps to create specific atmospheres but also helps to increase energy efficiency, improve safety, and create a more visually-pleasing environment. With advances in technology, lighting has quickly become a great resource for both indoor and outdoor use.