Chinese Yonghui group   

Yonghui noctilucent powder (luminous pigment) the light absorption characteristics of the dark light. The light absorption of sunlight, lighting, and other environmental stray light visible light, darkness can be automatically continuous light, indicating more information to people in the dark. The without power, detected by Chinese Institute of metrology, this product is non-toxic, non radioactive, chemical stability. The excitation condition is low, the sun, general lighting, environmental stray light can be used as excitation light source. The high brightness, long luminous time, far more than the requirements of fire evacuation. The simple installation, convenient maintenance. According to the actual needs of public places