Li-Fi — that just-over-the-horizon wireless technology which could transform your everyday LED lighting fixtures into 10 Gbps wireless modems — has a lot of people talking these days. With a commercial product promised later this year and the tech already in beta, we might all be trippin' the lamplight fantastic real soon. But other than really, really awesome movie streaming speeds, what do we care? According to its inventor Harald Haas, Li-Fi offers a bundle of niche applications that regular Wi-Fi just doesn't measure up to. Here are a few of those unique benefits.