Zhuoxian Li
University of Southern California
Promotion Campaign for LED Lighting
Future of LED Lighting
Now is the time of an information age, in which energy plays an essential role in people’s life. People rely heavily on various kinds of resources to support their daily life, especially gas and electricity. However, as a result of excessive exploitation of natural resources, the world is now facing a global energy crisis, which is triggered by the fast-paced economic development. Energy conservation has now become a global issue rather than a private concern. According to a recent research, illumination power accounts for about 20 percent of the total power utilization in the United States. In this situation, my campaign is designed to promote LED lighting, which is apparently more economic and environmental friendly than other lighting fixtures.
The Energy Crisis
Due to the rapid growth of the world population and the accelerating environment deterioration, energy conservation has become a global concern. As a recent survey shows, the global energy consumption has been gradually increasing at a speed of 1.8 percent annually during the past 30 years, along with the continuous growth of the world economy. Some scientists predicted that all kinds of fossil fuels will be exhausted all around the world by the end of 2030. Therefore, energy conservation has become a burning issue, which is now increasingly urgent.
LED Lighting
LED is short for Light Emitting Diode, which is a semiconductor lighting material. It was firstly introduced as an applicable electronic element in 1962. The early versions of LED could only emit low-intensity light, whereas the modern ones are proved to be able to deliver light with incredible brightness. Except for the conventional semiconductor light emitting diodes, there are other two advanced LED products, the organic light emitting diodes (OLED) and the polymer light emitting diodes