Although Li-Fi can offer many advantages there are some disadvantages as well. 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. If you want to move to another location, you have to make sure there is also an LED bulb to make the connection to the receptor. Another disadvantage is that it doesn’t work with the LED lights turned off (the lights need to be on in order to transmit data but they can be dimmed down), this being an issue and also a concern on the power bill and usage. It only works on those devices (tablets, smartphones, etc) that have a Li-Fi receptor.