Lighting is one of the most important technologies through which the world lives and operates. It not only provides visibility and safety, but it also sets the mood for events, stimulates productivity, and aids in the production of goods and services. Lighting technology has made tremendous advances over the last two or three decades, with the introduction of LEDs and other more efficient sources. LEDs are significantly more energy-efficient than traditional sources, such as incandescent bulbs, fluorescent tubes, and halogen lamps. This means that they require fewer watts of electricity to produce the same amount of light, leading to reduced energy costs. In addition, LEDs are now available in a wide range of colors, enabling a greater choice of decor within spaces. When selecting a type of lighting for a given space or application, it is important to consider the benefits and drawbacks of the various types of light sources. Incandescent bulbs have a warm, soft, white light, but are not as energy efficient as LEDs. Fluorescent tubes and halogen lamps produce a cooler light with higher greater efficiency than traditional incandescent bulbs, but may require more maintenance. LEDs offer a wide range of color temperatures and have the potential for very high efficiency, making them a popular choice for many applications. Lighting technology has become increasingly important and integrated into everyday life. As technology continues to advance, lighting will continue to transform the modern world.