Create a bright, safe and secure place
For example, one at each of the four corners of the gymnasium. One in the flow line from the school gate to the gymnasium. One in a long corridor.
Because it is so bright and only 80w, it can make effective use of the limited power available at evacuation centers, and the number of lights stockpiled can be reduced.
The light does not get high temperature like others, so there is no fear of fire and it is safe continuous lighting even a month and compact and lightweight, so it is easy to carry and move the light around.