1, LED products should use some DC constant current power supply manufacturers to produce low-cost products use "RC-step-down" approach to power led lighting engineering products, such as LED lifetime promise will indirectly affect the product. Application utility switching power supply for LED products will not affect the use of the product life lighting project, preferably a constant current source, but definitely higher product costs. 2, pay attention to the temperature of the lower resistance LED will become smaller when the outside temperature is lower case, LED light source resistance will be reduced, if the use of regulated power supply current is reduced formation of LED thing, when additional things beyond its current, LED product will affect the use of life, tension will make the LED light source, "burn", thus the best selection of constant current source power supply, in order to guarantee the LED current is not affected by things outside temperature. 3, pay attention to the seal whatever LED products LED products, just use outdoors, are facing, moisture-proof seal the title, if the disposal is not good it will indirectly affect the service life of LED products. Today, there are few local requests for product quality comparable to high-production factory application of traditional epoxy "irrigate" approach to seal LED lighting products, this approach to manipulate them much trouble lighting engineering company rankings, LED products on a large volume (such as LED guardrail light) is not very appropriate, will form a component of the product growth. Second, China's semiconductor lighting industry has entered a period of rapid development since the rise after 2003 start of semiconductor lighting project, the ministry of science and technology research programs, 863 in the field of new materials has supported the semiconductor lighting technology innovation and industrialization, China's semiconductor lighting industry and technology has made significant progress, the initial formation of the material from the upstream, midstream chip preparation, the downstream device packaging and integration of applications developed with relatively complete industrial system, entered a rapid development stage. 1, the industry has made great breakthroughs in key technologies. Enterprises as the mainstay of the LED manufacturing technology progress rapidly, after the completion of the online business industrial power type chip package luminous efficiency of 80 ~ 100lm / W. Power white LED package reached the international advanced level. With power-type silicon substrate LED chip packaging intellectual property rights after the luminous efficiency of 78lm / W, at the international advanced level. 2, the industry takes shape, becoming a complete industrial chain, market applications go in the international forefront. By the end of 2009, China had more than 3,000 LED business. Among them, the upstream epitaxy and chip manufacturers over 40, about 1000 packaging companies midstream and downstream application products manufacturer 2000. Private enterprises accounted for 85% of the total number of enterprises In 2009, China's chip output increased 25 percent to $ 2.3 billion, with 26% growth rate in 2008 was essentially flat. In 2009, China's LED packaging production value reached 20.4 billion yuan, an increase of 10% over 2008's 18.5 billion yuan; yield increased from 94 billion in 2008, 10% of lighting Engineering Corporation, reaching 105.6 billion, of which highlight the LED output reached 18.6 billion yuan, accounting for 90% LED total sales, while the product and corporate structure, the country has greatly improved, SMD and high power LED packaging is growing rapidly. In 2009, China's semiconductor lighting application output value reached 60 billion yuan. Despite the financial crisis, China's semiconductor lighting industry in 2009 is still showing the development trend bucked the trend, the industrial scale to 82.7 billion yuan, an increase of nearly 20% in 2010 is expected to reach 100 billion yuan. Illuminating Engineering Construction Group Corporation _ Yang Gang (certified) _ Lighting Project in Gansu, Henan Province by force base Tianyuan Construction Limited. Force base in Henan Tianyuan Construction Engineering Co. (www.yg-dj.com) is a leader in Zhengzhou, construction project cooperation over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Yang Gang Construction Group in leadership with the staff warmly welcome all inquiries negotiations, Yang Gang Construction Group to create a better future.