Lighting is an important part of our lives, and its use influences many aspects of our living environment. Firstly, lighting is useful for illumination, so that we can see clearly in the dark or at night. Besides, depending on its color temperature, it can affect our moods. For example, cool and vibrant colors can make us feel more energetic, while warm and softer colors can make us feel more relaxed. Also, proper lighting can make the house look contemporary, elegant and inviting. It can also create different atmospheres. For example, dramatic lighting in a room can bring a romantic atmosphere and a dramatic ambiance. On the other hand, gentle and barely visible lighting in the room can make it look cozier and more intimate. Lighting can also be used for decoration. We can create different effects and displays by using light. Moreover, it can also be used as a security measure. Motion sensor lights can be installed outside to detect movement. When movement is detected, these lights will be triggered and light up the area, thus deterring potential intruders. In conclusion, lighting plays an important role in our daily lives. It is necessary for illumination, security and decoration. Therefore, it is important to choose the right type of lighting for our spaces to achieve the desired effect.