In general it is known that over time, the density, colour balance and whites of prints are gradually changing by degradation. The rate of deterioration is depending on the different technologies used for printing, paper quality, type of illumination and the different types of protection (such as framed under glass, UV filtered glass, acrylic, polycarbonate or totally uncovered). End-consumer don't know "how long will your photo prints last". The indoor light display permanence test results including the test method will be explained of silver halide technology prints as original photopaper.