Wi-Fi is now essential to every modern person’s life, but have you heard of Li-Fi. It’s been boasted as the new technology that could rock the world of the Internet. Li-Fi stands for light fidelity. Instead of using radio waves to transmit information like Wi-Fi, Li-Fi uses light waves, which makes the process faster and more secure. How does Li-Fi work? With this technology, your Internet would actually be transmitted through LED light bulbs, which would also provide the sources of light. So you basically kill two birds with one stone. Another advantage of Li-Fi is that it’s immune to occasional interference from other radio signals that can sometimes disrupt Wi-Fi. Naturally being man-made, it’s far from perfect. Unlike Wi-Fi, which can pass through walls, Li-Fi is limited to the room you are in because the devices have to be able to catch the light. Due to this limitation, it’s still too early to say whether it will replace Wi-Fi.