This product uses High-Brightness Light Storing pigment, which can store the energy of light. After the light-source is turned off, the light storing pigment starts to release light energy (visible light can be maintained up to 6 hours in the dark depending on storing conditions) 
The above characteristics of the product can be applied to power outages caused by sudden events. Power failure, caused by natural or electric events. 
To serve as an emergency guide during these events it can be used in public places, yachting, walkways and stairways, cinemas, basements and tunnels etc. as a guidance for people fleeing the area.