Photoluminescent pigment, luminescent powder. Glow in dark.luminous ,Long after-glowing delay,Repeatable on recharging & glow ... Photoluminescent pigment, photoluminescent powder (is called glow powder, luminous pigment, luminescent pigment, glow in the dark pigment, night light ... used in a variety of organic mediums including plastic, rubber, paint, fiber, glass, resin, wax, and get to produce ...