1. The road stud is produced by mould in one punch, no need to assemble, which greatly improve its load capability. Solar battery, electronic component and LED indicators are sealed in road stud with special technique, the road stud is strictly water proof, which can be used on ponding road for the long run. 2. Upside of the road stud is designed with embossed parallel stiffeners which strengthen the stud and protect solar panel from being crushed by the wheels. 3. Additional wear-resisting layer is increased on the upper surface, which prevents the surface from being wear away, and improve the efficiency of solar energy transfer. 4. Intelligent control IC, imported precision potentiometer, heat-resistant high-volume rechargeable batteries are applied in the road stud, which ensure its service life and excellent performance. 5. LED indicators are mounted in one side or double side according to customers’ requirement. 6. The road stud is designed with handgrips and screw holes on both sides, which can be installed firmly on the road. 7. Easy to install. 8. The road stud is applicable to pavement, roadside edge, kerb stone, port and so on.