Wi-Fi Access Through Light Bulb & LED Lights

 It is the matter of time that we will be able to access Wi-Fi emitting through Lightbulbs. This idea is formulated and invented by some scientists at Fudan University in Shanghai. They have developed a prototype of such device and known as Li-Fi technology. 

Professor Harald has coined the term Li-Fi and is doing extensive research in this field. There are some micro chips embedded in a light bulb, they can facilitate transfer of data at speeds of about 150 Mbps. Scientists have tested that four computers can access internet under the light bulb using light frequencies rather than radio waves.

This is a distinct advantage in that the visible light is far more plentiful than the radio spectrum (10,000 times more in fact) and can achieve far greater data density. Li-Fi signals work by switching bulbs on and off incredibly quickly – too quickly to be noticed by the human eye. This most recent breakthrough builds upon this by using tiny micro-LED bulbs to stream several lines of data in parallel.

Although it is just an experiment till date but soon we will be able to get a Li-Fi kit in the market and can start accessing Wi-Fi by just installing a light bulb.

There is a TED talk available on Youtube by Prof. Harald Haas on this awesome technology for the future.