A USB charging unit including a plug inserted into an outlet and a USB connection terminal inserter, and storing electrical energy in an electronic product having a USB connection terminal to be coupled to the USB connection terminal inserter with power supplied through the plug; And;A USB charger including an optical sensor and a lighting device, the lighting unit being connected to the USB charging unit to emit the lighting device with the power supplied through the plug when the intensity of light detected by the optical sensor is below a predetermined level. Is disclosed.;The present invention is more economical than the cost of the consumer to purchase each product while using a charger having the characteristics of LED LAMP and USB Adapter, the producer can be mass-produced without large equipment changes in the existing process. In addition, it can be settled as an accessory of the house by breaking away from the ordinary image, and the use of the stand has the effect of a soft stand in a dark room and quicker charging and portability than the conventional charging method.;USB Adapter, LED LAMP, Day and Night Sensor, Charger
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