Nowadays, a wide range of applications LED Street Light , indicating that the energy-efficient LED Lighting utility, the following technique to understand the case led some tech fashion applications: Two years before the rise of the "visible light communication" technology believe that attract a lot of people‘s eyes, no WIFI signal, an LED lamp can light up the Internet. This is hard to imagine the communication technology is actually not far from us. Professor of National Mobile Communications Research Laboratory, Southeast University, Zhang Chen, the "visible light communication" technology is not a mystery, the principle is the semiconductor lighting technology and communications technologies, the use of LED light source to quickly change the characteristics of luminous intensity, the information is modulated onto LED lighting , you can place in a light transmission of information. Visible light communication technology is also known as "LIFI". Back in 1999, Hong Kong and Japan scholars visible light communication technology for a more systematic study. To 2009, with the increasing popularity of LED lighting, this technique re-entering the horizon, and has been developing rapidly. Radio signal "through the wall", it is difficult to ensure the security of information transmission. In the "visible light communication" among these security risks becomes nowhere to hide. For example, one way or another blackout curtains, the lights in the outside world would not receive information, confidentiality than radio communications, so "visible light communication" can be applied to military and national security and other special areas. In addition, a lamp LED Lights briefly transform ordinary equivalent of a small base stations, LED lighting under the premise of universal cost "visible light communication" network construction is greatly reduced. It is because of the excellent safety and low cost, "visible light communication" can not only be used for indoor wireless access, but also that intelligent transport and positioning system to provide a new approach. However, visible light communication "technology there are still many limitations, such as blocking the light data is interrupted, etc., to make this technology like WIFI, as every family, there is still a long way to go." Visible light communication "and not a replacement for existing wireless communication technology, more functional complementation. At present, the "visible light communication" involves a number of key technology research and development progress smoothly, based on the application of this technology is expected next year industry, which will serve as an additional function led street light LED lighting products is bound to bring more advantages value.