From the luminous efficiency, LED lighting has reached the standard to replace the traditional lighting. The main direction of development of the LED lamps should not be based on technology upgrades lm / w, but reduce the cost of the lm / w.For LED lighting market size,in 2009 LED lamps output value of global lighting market was about $ 2.4 billion, the penetration rate was only 3.3%,it is estimated the proportion of LED lighting in the global lighting market in 2015 will be up to 50%, 80% in 2020.While the price difference of LED lighting products and lighting products has rapid decline, penetration of LED lamps will rapidly rise, it is thought that the large-scale replacement of the LED lamps will start in 2012-2015 ,which will be important investment timing of LED lighting industry.Since commercial and industrial enterprises are more sensitive to the cost of electricity, the government becomes more stringent of energy saving and emission reduction, commercial and industrial field will be more active about using use energy-efficient lighting products. The replacement of LED lighting products will occur in commercial and industrial field,after a good trial, then it will be gradually spreaded to the field of home lighting.Now, because of the high price of LED lights, so the market is not fully opened, the main demand is from government agencies and the commercial lighting (commercial lighting market is not completely open). There is a 80 million LED lamps financial subsidies, but several markets benefit from this. So in the next five years, the commercial lighting market will be gradually opened, the market demand will gradually release more space, so in recent years,it is good time to invest LED lighting.