参考 Lighting plays a vital role in our lives. It used to be candle light, but now we have electric lighting, ranging from simple bulbs to advanced lighting systems. Lighting is used in our homes, both inside and out; in our businesses; on our streets and roads. Modern electric lighting has many advantages. It offers better illumination, better visibility, and more options for lighting fixtures, such as stylish lamps and bright spotlights. Electric lighting also allows for a greater level of control of the space, offering dimmable lights, motion-activated lights, and lights that can change color. But electric lighting also has some downsides. It can be costly to install and maintain. It can also be energy-intensive, which increases energy consumption and carbon dioxide emissions. In spite of these drawbacks, we will continue to rely on electric lighting for the foreseeable future. It is an integral part of our lives and has enabled us to see the world in a different light.