Lighting has been an important part of human life since ancient times. The earliest use of light for human usage was fire, followed by the invention of artificial lights such as oil lamps, wick lamps, candles and gas lamps. Modern lighting relies on electric lamps to provide bright illumination for a variety of purposes. Light provides many practical benefits. It reveals obstacles that can trip people up or cause damage. It shows roadways and pathways so people can determine where to go and how to get there safely. Lighting also provides safety indoors. By properly lighting such areas as stairways, most people can move around safely and confidently. Light can be a source of beauty as well, especially when it is used to illuminate works of art or make beautiful architectural features stand out. Lights can also be used to set a mood, whether it's making a home look cozy or providing dramatic effects in a theater. The latest LED lights use very little electricity and are available in a variety of colors and shapes, which make it possible to create a variety of lighting effects. Lighting has become much more than an essential source of illumination. In our modern world, it is an essential part of our lives that allow us to live, work, and play safely, and to appreciate beauty in our world.