Lighting is an important element in decoration and architecture. Lighting technological advances have made changes to many aspects of people's lives, from energy conservation to design and creativity. What can lighting do for us? First of all, different lighting fixtures can create different dramatic effects, for example, using spotlight to focus on paintings and sculptures. Secondly, it can bring a sense of security to us. During dark, we can turn on the lights to scare away the bad guys. Thirdly, by controlling the intensity and color of light, we can create an atmosphere. For example, the bright white light of a restaurant is very different from the cool blue light of a private home. Finally, lighting can also save energy. By replacing traditional bulbs with new energy-saving bulbs, we can save a lot of electricity. In conclusion, lighting can be used to greatly enhance the atmosphere and beauty of any interior design. It can also be used to create a sense of security and save energy. Therefore, it is essential for us to consider proper lighting when decorating our house.