Dr Povey's group is already up to 130 megabits a second over a distance of about two metres, using standard LEDs.

波文博士的研究小组已能利用标准LED在约两米内以最高每秒130兆位的速度传输数据。

But even if LEDs are not modified Dr Povey reckons hybrid systems are possible: data could be downloaded using light but uploaded using radio.

但即使不对LED进行改造，波文博士认为混合系统也可能行得通：通过光下载数据，而上传数据则使用无线电波。

Dr Povey's group is already up to 130 megabits a second (faster than some older Wi-Fi routers) over a distance of about two metres, using standard LEDs.

波文博士的研究小组已能利用标准LED在约两米内以最高每秒130兆位的速度（比一些老式Wi-Fi路由器还快）传输数据。

But even if LEDs are not modified Dr Povey reckons hybrid systems are possible: data could be downloaded using light but uploaded (typically a less data-intensive process) using radio.

但即使不对LED进行改造，波文博士认为混合系统也可能行得通：通过光下载数据，而上传数据则使用无线电波（这一过程的数据量通常小些）。

Dr Povey, who is also the boss of VLC, a firm set up to commercialise the technology, thinks such devices should be able to reach 1 gigabit per second, and do so over greater range.

同时也是VLC公司的老板的波文博士认为这种器件应能达到每秒1千兆比特的传输速度，且传输距离可以更远。

Dr Povey, who is also the boss of VLC, a firm set up to commercialise the technology, thinks such devices should be able to reach 1 gigabit per second (Gbps), and do so over greater range.

同时也是VLC公司（为使这种技术商业化而成立的公司）的老板的波文博士认为这种器件应能达到每秒1千兆比特（Gbps）的传输速度，且传输距离可以更远。

Dr Povey believes that adapting existing LEDs to work with the sensors and light sources-cameras, ambient-light detectors, screens, flashbulbs, torches and so on-already found in smartphones and similar devices will be the fastest way to bring Li-Fi to market.

波文博士认为，改造现在的LED使之适应智能手机及类似设备上已有的感应器及光源，如摄像头、环境光感应器、屏幕、闪光灯泡、手电筒等，是将Li-Fi推向市场最快的方法。