Solar Embedded Studs. The round design In Pavement Solar Road Stud creates a good appearance while being inbedded in the road so it can withstand increased compression. Ideal for high traffic centre lines. The stud can take up to 15 tons compression resistance and is fitted with three LED lights to make it visible from up to 700m away. Solarflex Thinner. 8.5mm Solar Road Stud; Suitable for walkways and cycle paths