： Lighting is very important in our homes which can provide different kinds of decoration, function and atmosphere. It can even affect our physical and mental resources. According to the positioning of space, lighting can be divided into general lighting, focal lighting and residential lighting. General lighting provides an overall atmosphere; it can use pendant, chandeliers, etc. The most important point of the general lighting is the installation height, usually the middle of the room. It is the most moderate and reasonable way to fill and transmit light to the entire space, and it is very important to enhance the overall atmosphere of the space. Focal lighting is used to help us focus on certain places and objects. It can be used for artwork, plants, artifacts, sculptures, and so on. Focal lighting is often experienced as bright spots that are focused in certain places. We usually use spotlights to highlight the focal points of the space, or to direct the focus of our attention. Residential lighting is mainly used as a supplement to the overall lighting, highlighting certain areas and increasing the level of brightness. It usually consists of a light strip and a downlight. Compared to general and focal lighting, residential lighting has more personalized design options as its main purpose is for decoration. For example, you can choose different shapes, styles, and sizes to create a unique atmosphere. In short, lighting plays an important part in our homes. It has many different meanings and can be used in various ways. Understanding the purpose of each type of lighting can help us enhance the atmosphere of our living space.