Need for Special Hardware: LiFi needs special LED bulbs for transmission and photo-detector for reception. The need for special LED bulbs has made it difficult to implement LiFi on a large scale as these bulbs are not yet mass produced.

Germany. Together with his team, German professor Harald Haas invented LiFi – a mobile wireless technology that transmits data through light sources such as LEDs (Light Emitting Diodes) rather than radio frequencies.

Disadvantages: Li-Fi vs. Wi-Fi For starters, Li-Fi doesn't work under direct sunlight because the sunlight blocks the path of the ray of light given by the LED lamp. Furthermore, it can't go through bricks or walls, so it can only be used in a single room.

After years of research and development, LiFi is now available in the market, ready to bring benefits to a wider audience. Whether it's in classrooms, airplanes, or government buildings, LiFi is making progress at the speed of light, and this is just the beginning.