Fluorescent pigments are special materials that can absorb light and then re-emit it at a different wavelength, usually producing bright, vivid colors. These pigments are commonly used in various applications, including paints, inks, and textiles, to create eye-catching effects. When exposed to ultraviolet (UV) light, they can appear to glow, making them popular for safety signs and artistic projects. The unique properties of fluorescent pigments arise from their molecular structure, which allows them to convert absorbed light into visible light. This characteristic makes them distinct from regular pigments, which only reflect light. Fluorescent pigments are often used in highlighter pens and neon signs due to their ability to enhance visibility and attract attention.