A new way to access internet by using led’s has been successfully developed by Chinese experts.
Through this technique a light bulb can be used simultaneously for Data transmission and illumination .
This technology is cheapest among other available methods as 1 rs bulb can also be used to access internet which is also making him environmental friendly , However there is a room for improvement in the area of security and coverage.
1.Mai draw back is that it can not cross walls, so every room must have led bulb to access internet.
2.Range is very limited.
But this can be said as Future of Internet.