What exactly is it and how does it work?
Li-Fi (Light Fidelity) put simply is a communication system using LED lights to send data wirelessly. This will give a more reliable, much faster internet connection to homes and businesses.
It works in a very similar way to Wi-Fi both transmit data electromagnetically, but Li-Fi runs on visible light as opposed to radio waves. If you look at the diagram below you will see that it uses light emitted from an LED lamp (solid state lighting), which is then picked up by a photo detector and sent through a processing element which converts the data into recognisable content, such as video or audio which can be run on any internet enabled devices.
So is it better than WiFi?
In many respects, yes. Li-fi has the capability of sending huge amounts of data at much higher speeds. As the Internet of Things becomes more popular and widespread, Li-fi would be able to manage data from a wide range of devices around the home or office.
There are still some drawbacks in that light cannot travel through opaque objects – such as walls, so to have continuous coverage you would need capable LED lamps throughout your home or commercial building, plus the lights need to be on continually to provide connectivity.
See our infographic explaining the many ways in which Li-fi will enable more industries to enjoyer better connectivity.
This technology is being trialled and tested for commercial use in several countries and the best way to be ready is to switch to LED lighting in your premises!
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