solar road stud, solar pavement marker, solar road marker, solar lane divider, solar road sign, solar traffic sign, solar plastic road stud, solar warning lamp. Wet Roads Conventional reflective markers lose their visibility when the roads are wet. The Solar Road Markers active illumination remains brightly visible, unaffected by wet conditions ?Foggy Conditions High intensity LED spotlights penetrate fog to help the driver to negotiate curves ?Dark Rural Country Roads Illumination from the Solar Road Marker can eliminate the need for street lighting while maintaining safe driving conditions ?Mountain Roads Help show approaching sharp turns and blind curves at night-time. The markers can also be mounted on guard railing to provide even greater visibility on twisted mountain roads