Well it isn't all that great. It's only going to glow for about 5 minutes.
Edit:
Oops, ok, after reading the site, I see that this material glows 10 times longer than other types. So, ok, 50 minutes. Still kind of useless, but better.
The glow is persistent for 8 to 10 hours. Ever see the buttons on a Sony remote control? They do glow all night just from the ambient light in an ordinary living room! This is the same type of material. I'll probably order a few since it's a good idea and I won't need to worry about getting NRC licenses for those overhead betalights my wife worries about so much. We have about 500W equivalent lighting in the head anyways so it'll be well charged!
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