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These days, internet has turned out to be major demand that people are in seek of Wi-Fi hotspots (internet providers). Li-Fi offers transmission of information through visible by transferring information via an LED light bulb that diverges in concentration quicker than individual eye can go after. The term Li-Fi states to VLC(visible light communication) technology that utilizes as standard to carry speedy interaction in a way comparable to Wi-Fi. Li-Fi supplies superior efficiency, security, bandwidth and availability than Wi-Fi. This paper offer a brief summary on Li-Fi technology, its applications, potential and advantages.