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The inspiration of this design comes one night,I slept very late,Then my mobile phone has no electricity,I picked up
the charger for charging socket,In the dark,I was holding mobile phone lighting, the other hand holding the charger for
Jack,It took me a long time to complete,so I want to design a charger above with lighting,when we are in dark,we can
press the button,then the charger head lamp would light up,we can easily find the jack.
Ningbo Institute of Technology, Zhejiang University