Li-Fi stands for Light Fidelity. A German physic Harald Hass invented this technology in 2011. The technology is very new and fast. Li-Fi is wireless and visible communication system that uses light emitting diodes (LEDs) for transmission of data. It is possible to encode the data into the light by varying the rate at which the LED’s flicker on and off which is too quickie too be noticed by the human eye. Li-Fi uses light as medium to deliver high-speed communication in a manner similar to Wi-Fi.

The difference between Wi-Fi and Li-Fi is that Wi-Fi uses radio frequency to transmit data where Li-Fi uses VLC (Visible Light Communication) to transmit data. Li-Fi has offer higher bandwidth and offering higher transmission speeds. The technology is actively being developed by several organizations across the globe. Li-Fi provides better bandwidth, efficiency, connectivity and security than Wi-Fi and hasalready achieved high speeds larger than 1 Gbps under the laboratory condition.