： Lighting greatly affects our daily life, from the color of the walls to the way we feel. It can set the mood of a room and create a sense of peace and relaxation. In the past, lighting was mainly used for general illumination, but today, it is used for many purposes. Lighting has four basic functions: illumination, decoration, task lighting, and accent lighting. Illumination is the most important of these functions and its necessary to light up the space for safe and pleasant activities. Decorative lighting can improve the look and feel of a room by creating a warm and inviting atmosphere. Task lighting is important for targeted illumination of specific areas, such as a workspace or reading area. Accent lighting can draw attention to certain objects or focal points and highlight their importance. Lighting needs to be carefully considered and selected because it can significantly impact the feel of a room. Different types of lights have different effects: fluorescent lights have a bright, clinical feel, while LED bulbs create a warm, inviting ambiance. Natural light can also be used to create a calm and serene environment. The right lighting can also help enhance the colors and textures of the space. No matter what type of lighting is used, it should create an inviting atmosphere so that people feel comfortable and welcome in the space. With careful consideration, lighting can improve the look, feel and functionality of any room.