This kind of glowing stone can absorb light in daytime then give out light in the dark. It is water-resistant and UV-resistant. Generally it can glow for 4-6 hours in the outdoor and it can glow 10-12 hours in a pure black environment.Generally for silicate and glass made glow in the dark stone, the cheap gravel can be used for walkway decoration, building, road pave and etc. For plastic resin made ones it can be used for indoor decoration, fish tank, garden decoration and so on.
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