Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. In modern times, artificial lighting is widely used in offices and homes, providing outside and inside lighting. Various types of lights are often used, including energy-saving lamps and LED lamps. Lighting technology has changed greatly in the last 25-30 years. Advances in lighting technology include improved efficacy, better controls, and more design options. Modern lighting systems often allow full-spectrum control, allowing you to tailor the way a space is lit. It also enables energy savings in large shared spaces, like conference rooms or office lobbies, by automatically dimming lights in unoccupied rooms. In addition, intelligent lighting systems can be used to support well-being. Studies have shown that having access to natural light can encourage higher worker productivity, and a feeling of comfort and balance. In conclusion, lighting plays an important role in today's life. Advanced lighting technology enables us to create more efficient, comfortable, and safe environments. They can also help make buildings more sustainable, and support human well-being.