night luminous ink is mixed by night luminous power ,storage
light then glow for 12 hours continually by itself .This process(absorbing- storaging-lighting) belongs to infinite loop ,you can use it forever. With features of innoucuity ,no radioactive material and no fatalness,not only can be used for daily necessities safely, but also for decorating in architecture ,transport tool, military facility, fire emergency systems, traffic sign and so on.
