Wholesale Road Stud For Motorway With Stem Wholesale road stud light for park-RUICHEN Solar road studs,road stud Name:Embedded Rreflective solar road stud with stem, Power supply:High Efficient Solar Panel(2.5V/0.3W ), Load capacity:30tons static, Battery:NI-MH 600mah(high temperature resistance), Material:Aluminium+PC, Water proof:IP68, road