UPSC Civil Services 2016 Prelims General Studies Paper I

(i) This OWC technology uses light from lightemitting diodes (LEDs) as a medium to deliver networked, mobile, high-speed communication in a similar manner to Wi-Fi. It is a bidirectional, high-speed and fully networked wireless communication technology similar to Wi-Fi.
(ii) Li-fi gives data transfer rate of 10 gigabytes per second. So 1 st statement is right. Li-Fi device circulates data via LEDs that emit an intermittent flicker at a speed imperceptible to the human eye. So, 2nd statement also right.