Lighting plays an important role in our life. Without lighting, our daily lives would be affected severely. In the past, people used firelight and candles when evening falls. Later, gaslights and electric lights were developed, making evening escape from darkness. Nowadays, there are plenty of choices for lighting. Sunlight, incandescent and halogen lamps, fluorescent lamps, high-intensity discharge lamps, LED lamps are all in use. In addition to these indoor lighting choices, outdoor lighting choices, such as spotlights, street lights, etc, are offered on the market. For whatever kind of lighting you choose, they all have one thing in common: providing lighting throughout our life. Lighting creates warm atmosphere for family, increases work efficiency for workers, helps legal activities and emergency activities to take place, and offers us security and convenience. Lighting has been making enormous contribution to our life and it will continue to do so in the future. 照明在我们的生活中起着重要的作用。没有照明，我们的日常生活将受到严重影响。 过去，人们在傍晚时用火光和蜡烛照明。后来，煤气灯和电灯被发明出来，使傍晚得以摆脱黑暗。 如今，照明有很多选择。阳光，白炽灯和卤素灯，荧光灯，高强度放电灯，LED灯都在使用中。除了这些室内灯具，市场上还提侤向各种户外灯具，如聚光灯、路灯等。 不管你选择什么样的照明，它们都有一个共同点：为我们的生活提侤照明。照明为家庭创造温馨的氛围，增加工人的工作效率，有助于法律活动和紧急活动的进行，给我们提侤安全和便利。 照明一直为我们的生活做出贡献，而且在未来会继续如此。