1.Mounted on square, intersection, crosswalk warning work zone, sharp curve warning, etc. 2.Life time is up to 10 ... year. SpecificationItemRoad stud with wireTypeRS-707PowerWith or without solar 110 or 220V AC,12 or 24V DC ColorYellow/white ... listG.W.15kgsCarton size41*30*33 cmQuantity24pcs/carton RS-707 Solar Road Studs With Wire Connected