Very interesting technology, but fit, safety, and comfort are still primary. If I could try one on and be satisfied as to the first things, I'd love a helmet that would glow like this I am a modular helmet guy, so that's a plus for me, and a Pinlock guy too, also good.
But the ad says the glow "is activated by absorbing the UV radiation of sunlight." And then "the longer it is exposed to sunlight, the longer (it glows)." If you could take it inside the house and charge up the glow there--with a lamp--it would be fine, but if it has to be sunlight and you decide to go for a ride a few hours after dark (or leave home early on a dark morning), guess it wouldn't glow much. Too bad.
Thinking back, when I was in the Air Force we had some paint we used to highlight flight line vehicles and trailers that was very reflective. I covered my old 3/4 helmet with that and it showed up in the dark pretty darn well--as long as the guy coming toward me had his headlights on. A little less space-age (and expensive) technology than this glow-in-the-dark one.