48V is interesting. It's a fairly safe voltage for humans to encounter. POTS in USA has used it for a long time, and PoE runs pretty close to it. It's easy to b

48V is interesting. It's a fairly safe voltage for humans to encounter. POTS in USA has used it for a long time, and PoE runs pretty close to it. It's easy to buy batteries for backup. As noted in TFA, it doesn't require components as beefy as those with 12V. I wonder if this sort of effort on Google's part could lead to more consumer-level electrical gear with strange voltages? ISTM a modern home with modern lighting should drive all of that with PoE or something else much like it...