Lighting is very important in humans modern life. It helps to light up our way when darkness spreads. Generally, people use artificial lighting like lamps and LED lights. LED lights have become increasingly popular in recent years. They are praised for their longer lifespan, faster on/off response, and higher energy efficiency than other traditional lighting systems. Additionally, lighting is also important for decor. People use indoor and outdoor lighting for decorations. For example, to create a romantic atmosphere for a wedding, people usually use soft lighting such as string lights, as they provide enough light without being too strong. For Christmas decorations, people light up the house with colorful LED lights and create a festival atmosphere. In addition to being used for illumination and decoration, lighting can also be used for safety and alertness. Red lights are often used on roads to indicate stop signals. Green lighting can be used to inform drivers that they can proceed. In retail stores, lights may be used to attract customers. Flashing lights can also be used to warn people of potential hazards. No matter what its purpose, lighting is an essential part of modern life. It helps to bring brightness into the darkness and enhance spaces with decorations. Finally, it is also important for safety.