标签：where to buy led christmas lights

where to buy led christmas lights, new LED Lights

Recently, the mainstream 0.5W and 1W LED Lights of price drops faster than the 5-10% decline in fourth quarter of 2011 and 2011 full-year decline of nearly 40% to 50%. It’s expected that in 2012 this rate will slow down, it is estimated that the 2012 full year it prices will fall 20-30%. where to buy led christmas lights?

where to buy led christmas lights, new LED Lights
To furtherly reduce the cost of the LED Street Light, some vendors try to use the cheaper silicon and metal materials as the substrate material to develop high-power LED, but this practice in the early 2011’s when a good subject, but last year the third and fourth quarter, as demand for LED production capacity and the sapphire substrate manufacturing capacity expansion, the end of last year the price of sapphire compared with the beginning of last year has been reduced by more than half. For example, the beginning of last year’s Sapphire’s price is more than 30 dollars, but by the end of last year, the lowest offer only about $ 7. When the sapphire prices fell to below $ 10, the substrate with other materials is not obvious advantages. where to buy led christmas lights?

Silicon substrate technology is actually developed quite early, but has not been developed, mainly because there are several important issues: First, the silicon defects, its luminous efficiency is relatively poor. The epitaxial growth of silicon, silicon itself will absorb light and therefore must silicon removed, do light carrier of other substrates (whether metal or other substrate). Here have to do the conversion of a substrate, the process itself is not so easy. When you increase a process when the silicon substrate to be replaced by another substrate, basically use the benefits of silicon. where to buy led christmas lights?

LED Products costs with silicon carbide substrate cost is much higher than the sapphire substrate, luminous efficiency of the silicon carbide substrate and the epitaxial growth of quality is better. The sub-opaque and opaque two types of silicon carbide materials, such as opaque silicon carbide substrate cost, rather than the transmittance of silicon carbide with silicon material, must be done after the epitaxial substrate conversion , the substrate conversion process will be related to another process, yields that there are some problems. So we mainly sapphire based materials, the technology has developed quite long and very mature.

U.S. officials said America will be Chinese where to buy led christmas lights rare earth export to the WTO proceedings

U.S. officials said America will be Chinese where to buy led christmas lights rare earth export to the WTO proceedings

 

Global Network reporter Li Zongze reported that the West recently seems intent to join forces once again launched an offensive on the Chinese rare earth export policy.According to Agence France-Presse reported on March 13, an anonymous U.S. off icialsaid U.S. President Barack Obama will announce on the 13th to the World Trade Organization (WTO), China’s exports of rare earths in proceedings where to buy led christmas lights.

Reported that the news is a senior White House officials said. The United States plans to join forces in Europe and Japan responded to dilute China’s export policy practices show that Sino-US trade relationship between the emergence of new tensions in the election year.

Chinese Ministry of Commerce Web site earlier reported that the European Union in the near future may once again on the Chinese rare earth export restrictions to the WTO proceedings, Brussels sources said that the where to buy led christmas lights action will soon be submitted to the United States and Japan will support and involved.

Reported that the EU was proposed in 2009 a similar lawsuit, asked the Chinese to lift the export quota system of rare metal products. The 2011 global demand for rare earth total of 137,000 tons. Due to the economic crisis, the export quota can not be fully used,at the end of 2011, China announced the rare earth export quotas in the first half of 2012fell 27%, the whole year is expected to export a total of 30,000 tons led high bay.

In addition, China in 2010, pointed out that control of rare earth resources in China’s sovereign rights, nor in violation of WTO rules. Foreign Ministry spokesman Ma Zhaoxu ata regular where to buy led christmas lights press conference on October 26 that year to answer a reporter’s question,stressed: the control of rare earth resources is China’s sovereign rights, but also in line with the relevant provisions of the WTO does not violate China’s WTO commitments.Restrictions on the export of important natural resources is also a common practice incoun tries accused China there is no justification in this regard.