LiFi, or Light Fidelity, is a wireless technology that uses light to transmit data. It is similar to Wi-Fi, but instead of using radio waves, LiFi uses visible light. This makes LiFi much faster than Wi-Fi, with speeds of up to 100 gigabits per second (Gbps) possible. LiFi works by using LEDs to modulate the light intensity. The LEDs are turned on and off rapidly, and the sequence of on and off signals represents the data being transmitted. A photodetector at the receiving end detects the changes in light intensity and converts them back into data. LiFi has a number of advantages over Wi-Fi. It is much faster, and it is also more secure, as light cannot penetrate walls. LiFi is also less susceptible to interference from other devices, such as microwaves and cordless phones. However, LiFi also has some disadvantages. It has a shorter range than Wi-Fi, and it does not work well in bright sunlight. LiFi also requires a direct line of sight between the transmitter and receiver. Application