Lighting plays an important role in people's daily life. It can create a pleasant and comfortable living environment at home, improve efficiency and work quality in the workplace, and provide better lighting in public places. Generally speaking, indoor lighting can be divided into two categories: general lighting and local lighting. General lighting is used when lighting the whole room. The most common type is ceiling lamps. Local lighting is focused on one or a part of an environment, such as desk lamps, floor lamps, wall lamps, and so on. With the rapid development of lighting technology, LED lighting has become the first choice for modern people due to its superior performance such as energy-saving and environmental protection. Whether it is general lighting or local lighting, LED light source can provide multi-color temperature, brightness and other lighting solutions to meet the diverse needs of people. In addition, the development of intelligent lighting technology is to realize the integration of lighting and the intelligentization of household. Lighting can not only meet the needs of the environment but also adjust to changes in physical or mental states. Through intelligent lighting, people can create their own "dream home" according to their own preferences. In short, lighting is indispensable for our life. With the development of lighting technology, people can enjoy a variety of lighting choices and create a comfortable life.