Wi-Fi stands for "Wireless Fidelity" and uses radio waves to create wireless network connectivity. The wireless adapter creates a "hotspot" that produces these radio waves. There are different variants of Wi-Fi that use different frequencies and have different maximum speeds. Li-Fi is a new visible light communications system using common LED lights to transfer data at speeds over 225Gb/s, which is much faster than the fastest recorded Wi-Fi speed of 100Gb/s. Li-Fi uses visible light instead of radio frequencies to transmit data wirelessly.