My thoughts on LI-FI


You’ve heard of Li-Fi right? Just in case you have not like most of my friends, allow me.

Li-Fi a term which was coined by Prof. Harald Haas of university of Edinburgh in 2011 is a visible light communication system that runs wireless communications travelling at very high speeds. Li-FI uses common household LED (Light emitting diodes) light bulb to enable data transfer, boasting speed of up to 224 gigabits per second.

Literally what this means is Li-Fi is 100 times faster than good old standard Wi-Fi but how exactly does Li-Fi work?
Li-Fi and Wi-Fi are quite similar as both transmit data electromagnetically. How ever, Wi-Fi uses radio waves while Li-Fi runs on visible light.

There really is no love lost between Wi-Fi and Li-Fi as both technology are in a class of its own. You might be thinking that with Li-Fi’s faster connectivity and data transmission at a higher speed, it’s probably an interesting space for businesses right? Well, just hold that thought. It’s true that Li-Fi will provide a wealth of opportunities for retailers and businesses, enable shop owners like me to transmit data to multiple customer’s phone quickly and securely, you still need to get your facts straight.

Li-Fi signal despite how impressive and faster it transfer data, cannot pass through walls like our standard Wi-Fi.

Additionally, where there is a lack of light bulbs or power supply, there will be a lack of Li-Fi internet. What this simply means is: people like me that reside in Nigeria can only have access to Li-Fi internet when the Power Holding Company of Nigeria decides to restore power supply. Not very promising I must say and that’s why people in this part of the World are advised to cue into ‘The Solar Revolution'(that’s a topic for another day).

But hey! It’s not all doom and gloom you know. Unlike the good old standard Wi-Fi, Li-Fi could make great impact on the internet of things with data transferred at much higher levels with even more devices able to connect to one another. Aside the fact that it’s more secure than Wi-Fi.

For me, it’s all about speed. I practically love anything and everything with higher speed. So whether or not Li-Fi will live up to its higher speed is yet to be decided. The world look forward to an upgrade of Li-Fi that will break wall barrier.

No matter, we at technicollit will always keep you abreast of latest technologies. If this is your first time of reading/knowing about Li-Fi, don’t forget where you read it.


Li-Fi is a bidirectional, high-speed and fully networked wireless communicationtechnology similar to Wi-Fi. The term was coined by Harald Haas[1] and is a form ofvisible light communication and a subset ofoptical wireless communications (OWC) and could be a complement to RF communication(Wi-Fi or cellular networks), or even a replacement in contexts of data broadcasting.

It is wire and UV visible-light communication or infrared and near-ultraviolet instead ofradio-frequency spectrum, part of optical wireless communications technology, which carries much more information and has been proposed as a solution to the RF-bandwidth limitations.

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