BEWARE OF IMITATORS - GRATEFULGOODZ AND LUMINESCENT PRODUCTS ARE THE ONLY SUPPLIERS OF "LUMINESCENCE" BRAND PIGMENTS.  Our standard glow powder is great for many glow in the dark projects.  It can be used anywhere long lasting, bright output, glow in the dark luminescence is needed such as clock or watch hands, electronic instrument panels, emergency signage and much more.  It can be used in writing and printing inks (gravure, flexo, and litho), paints and coatings (including water based systems), and textile printing.  You are only limited by your own mind! Our product is a full one ounce of glow powder, not including the container so you get all product for what you pay.  Our powder is yellow-white in light and glows a yellow-green when charged and put in darkness.  Will reach full charge in fifteen minutes of sunlight or strong florescent light such as kitchen light for 15 to 20 minutes.  Glow will diminish over time but still be glowing hours later.Glows 10 times brighter & 10 times longer than Zinc Sulfide based pigments!This product is a class of newly developed phosphorescent (glow in the dark) pigments which are based on Strontium Oxide Aluminate chemistry. They are drastically different from conventional phosphorescent pigments which are either based on Zinc Sulfide or on radioisotopes for their self luminous properties.