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In 2008, there were only 50 LED enterprises in Dongguan, with an output value of less than RMB 3 billion. By the end of 2011, Dongguan LED enterprises had exceeded 150, with an output value of 11 billion yuan, of which 18 were large enterprises with an output value of over 100 million yuan. . With the increasingly perfect LED industry in Dongguan, the LED industry in Dongguan has formed a relatively complete industrial chain, which is distributed in upstream epitaxial wafers, midstream chips, and downstream packaging, applications and supporting materials.
Dongguan proposed to build the Songshan Lake LED Chip Industrial Park, Songshan Lake LED Equipment Industrial Park, Changping LED Application Industrial Park, Shijie LED Power Industry Park and Qingxi LED Chip Packaging Industrial Park in 2012. Enterprises engage in technology investment. The "Work Idea" also proposes to build three industry public platforms for the LED industry public R&D platform, public testing platform and public trading platform, and set up special LED funds to support LED industry technology innovation, subsidize LED application demonstration projects, and introduce LED high-end projects. To create an environment conducive to the development of LED, and help the rise of the LED industry. 
The increase in voltage and losses in wiring circuits can cause inverters to prematurely shut down on over voltage setting.
Recently, the Dongguan Municipal Government issued the "Dongguan City 2012 LED Industry Development Work Plan (Draft for Comment)" to publicly solicit opinions on the development of the LED industry. According to relevant sources, Dongguan has formulated a plan for the LED industry base, and strives to build the LED industry in Dongguan into a cluster of modern LED industry with outstanding advantages, striving to become an important part of the international semiconductor lighting industry chain.