We use luminous powder combining exclusive technology to produce luminous signs that include self-luminous signs for fire control, luminous signs for ship and transportation signs for places. According to the materials, they also can be defined as aluminum luminous signs / light reflecting signs / plastic reflecting sign / aluminum and plastic luminous signs. If a luminous sign absorbs diversified lights (natural light or lamplight) for 10-15 minutes, it can continuously glow for over 12 hours and repeatedly to glow without limit. It can be used for 15 years. So it has features of not needing power, easy installation, not needing maintenance, long life, no radiation, and safety.