Lighting is very important in modern days.It can serve many functions. Firstly,lighting can create a special atmosphere.The gentle and dreamlike lights can make people feel relaxed and peaceful.Besides,when family members get together at home,the unique angles that lights provide will make the space warm and family oriented. Moreover, lighting can help to show the style and characteristics of a room. For example, in a living room, making use of warm colors such as yellow light to make the quality of life warmer and more comfortable. On the other hand, if for a commercial area, choose some cold colors to fit the atmosphere there. With the help of the lighting, different tastes can be fitting in these different places. Besides, lights can also provide safety. For a dark and narrow alley, appropriate lighting can increase peoples sense of security. Moreover, when you in a hallway, lights can can help you find your way in a faster and safer way. In conclusion, lighting have its own characteristics in our life, they can provide a special atmosphere, show the characteristics of a room, and provide safety for us.