Tips: Only after a period of illumination during the day, can this hats glow at night. So please let it receive enough light first if you need to use its night light function.

 

After being exposed to natural strong light, incandescent light, ultraviolet light etc, store the light energy. After stopping the light irradiation, slowly release it in a fluorescent manner, so you can see the light for a while at night or in a dark place.

 

Absorb strong light for 5-15 minutes, can emit light for 30-60 minutes.