So mine finally got here. Major disappointment. It doesn't hold its glow anywhere near as long as it said it should. I have a 12 LED UV flashlight that I let it sit on for 25 minutes and it only glowed for about 10, 5 of the minutes being severely diminished. Website says 15 seconds should get 1-2 hours. No negative reflection on Massdrop here but the product sucks and wasn't worth it. The Carbon Fiber is nice though and the size was right at least.
TovarishGamingyeah, got mine today fater 7 weeks, just had it in direct light for an hour, dimished in 2 mins, after 5 its barely noticeable anymore. huge disappointment.