Lighting is an important part of our life. Just because of the natural lighting in the daytime, people can work and study normally. Without artificial lighting, the evening scenes would be totally different and the world would be in darkness. The invention and application of artificial lighting not only enrich people's night life, but also promote the night economy. There are many types of lighting. It can be divided into interior lighting, exterior lighting and landscape lighting. Interior lighting is mainly used in the rooms of our houses, and it is the primary way to provide light and warmth in our homes. Exterior lighting mainly refers to the lighting outside our home. It plays a role in guiding and lighting when people go out in the dark. Landscape lighting refers to lighting used in gardens, green spaces, pathways, etc. It is used to make these places more beautiful at night, or to make the environment more comfortable and safer. The types of lighting and the strength of illumination are different according to different needs of people. Lighting has now become an important factor in our lives, it makes our lives more convenient, provides people with a comfortable environment, and makes our world more beautiful.