Li-Fi may be described an optical wireless networking system. Li-Fi networks are powered by rays in the visual range as well as in the infrared and UV range. Li-Fi is 100 times faster than Wi-Fi and does not require any wired connections.
Li-Fi uses LEDs (light emitting diodes) to enable data transfer at really high speeds, theoretically up to 224 Gbps. That is super fast, but in practical condition, Li-Fi have been found to be a lot lesser than that – 1 Gbps, which is nothing to be scoffed at.