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This design deals with five problems:① It is hard to pull out the plug when it is inserted into an electric outlet. ②Some devices need more space when charging, it will affect the use of other sockets③Added some USB interfaces, it is convenient to charge for electronic products ④Time setting, its aim is to control the using time of electrical appliances. It is not only environmentally friendly, but also efficient in reducing the cost of static electricity. So it guarantees the lifespan of electrical appliances.⑤The using of tri-color LED lights is to remind people to save source energy and prevent being tripped by wires at night.
South China University of Technolog
Guangdong Jidian Polytechnic