In 2002, Hangzhou Yeming Science & Technology Co.,Ltd. was established to manufacture and develop photoluminescent pigment (was also called as glow in the dark powder or luminous powder) and related products especially for safety evacuation application. Yeming’s photoluminescent pigments are based on strontium aluminate, they are non-toxic, harmless and non-radioactive.They charge light extremely fast and their afterglow level is also very good. All of Yeming’s photoluminescent signs and the other related items (photoluminescent sheet, photoluminescent film, low location lighting system, photoluminescent stair nosing etc.) are made of our own high quality photoluminescent pigments. Yeming photoluminescent safety sign(glow in the dark sign), evacuation path marking system have helpe..