| 摘要 |
The present invention relates to a road marking stud, and more specifically relates to a road marking stud that can flash automatically in rainy weather. The present invention comprises: a collimator-joined casing; a power supply device for supplying power on the inside of the casing; a rainwater sensor to which a switch unit is connected and whereby a current is passed when rainwater flows in; and a light-emitting element to which the power source is supplied and which sends out light. |
