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Aquarium luminous night sand glow dark bright glowing fluorescent particles aquarium decorative color street bottle Lighting material: gouache pigment characteristics 1. After the sun shines on the sun, natural light or light, it can self-illuminate and repeat the cycle indefinitely. 2, the luminescent pigment effect is non-disposable, can be repeatedly illuminated for more than 15 years, widely used, can be used for aquarium decoration, nail art, DIY small jewelry, flower pot decoration, etc. 3, non-toxic, tasteless, non-radiative, waterproof, high temperature resistant, wear-resistant Note: Luminous particles belong to optical storage products, the principle is to absorb light through the light source, each luminous time is 2-8 hours, of which 1 - 2 hours is Highlight period, then continue to light up. The product received did not illuminate because there was no source of absorption during the logistics process. Just illuminate the sun or light for a while and you can re-light it.