LiFi (short for light fidelity) is a wireless optical communications technology that uses visible light to transmit data in real-time. In other words, data can wirelessly travel at the speed of light using light itself. Likewise, it’s up to 100 times faster than standard WiFi speeds.
Professor Harald Haas first introduced LiFi in 2011 at a TED Talk on Visible Light Communication (VLC). Since the technology uses a light source, it has more bandwidth capability, unlike WiFi, which uses radio waves. Due to its significant capabilities, various industries use LiFi for multiple tasks.