Lighting plays an important role in our daily life. It makes the night become the day and provides a warm and comfortable atmosphere for us to work and study. In the medieval times, people used oil lamps and candles as lighting. But today, electricity has taken the place of these primitive lighting methods and brought a new breakthrough of lighting development. With a wide range of lighting products such as incandescent light bulbs, fluorescent tubes, and LED bulbs, lighting has become easier and more efficient. Besides illuminating the place, lighting technology has been widely used in many areas such as security, entertainment, and eco-friendly. For example, motion sensors, timers, and dimmers can guarantee the safety of a place. Meanwhile, in order to improve the atmosphere, lighting has been used to create an impressive scene in TV programs or films. With the progress of environmental-friendly technologies, green lighting solutions, like solar or wind power, has become increasingly popular, which not only brings colorful sight at night, but also reducing the carbon emission. To sum up, lighting has changed a lot in the past years which brings more convenience and great benefits for the future.