The photoluminescent pigment developed and manufactured by Minhui has two kinds: one is an alkaline earth aluminate based long afterglow photoluminescent material activated by rare earth elements, and the other is a traditional sulfide-based photoluminescent material. Particularly, the alkaline earth aluminate photoluminescent material can absorb various visible light for 10-20 minutes and then emit light continuously for over 12 hours in the dark, The luminosity and its glow time are more than 30 times that of traditional photoluminescent materials represented by ZnS:Cu; and its light absorption, storage, and emission capabilities can be indefinitely recycled.Testing conducted by the National lnstitute of Metrology (NIM) confirms that the product is non-toxic, free from radioactivity, and has stable chemical performance. lt can be utilized in the production of various photoluminescent products and finds extensive applications in areas such as fire prevention, signage and more.