With the continuous development and upgrading of the LED lighting industrial, the country undertake the wave of a wave after wave, making the LED producing areas everywhere,everywhere known as the largest LED base. Known as a total investment of 20 billion yuan, the largest LED lighting industrial has settled in Qi dong, Jiang su Province; Hefei have predict the future to build the country’s largest LED manufacturing base; LG claims to have been built the world’s largest single LED manufacturing base … but what exactly is the largest ? According to statistics, Linyi, Shandong, Anhui Wuhu, Nanchang, Jiang xi, led high bay, Guang dong Hui zhou, new production areas emerging to incomplete statistics, up to now,the highest amount of total investment of Ordos City, Inner Mongolia Hangjinqi Mengxi LED opto electronics industry cluster district plans to invest 27.5 billion yuan, the project covers an area of 2,500 acres, the project is estimated to achieve annual output value of68 billion yuan, profits of 12 billion yuan, 17 billion yuan of industrial added value, may arrange for the employment of 5000 people. LED lighting industrial around the bases, some producing areas have entered the operational phase, and some are under construction,local governments in efforts to build the LED industry base to form a new force.
Tunnel lighting solutions in order to achieve energy, usually four lighting, sunny, sky,overcast and heavy overcast four kinds of lighting modes, this control method is generally used to control the number and location of lighting to achieve purpose classification lighting. Is the traditional high pressure sodium lamps used, due to the power specifications for the high pressure sodium light source general-purpose only 100 W, 150 W, 250 W and 400 W of several highway tunnel lighting only 40 to 120 W can be but the basic lighting of the tunnel is usually used 100 W, 150 W or higher, high pressure sodium lamps [3], the prevalence of excessive lighting, or to manually control the problem.