traffic led solar road stud: 1,Material: solar panel,PC,LED,reflector 2.Working time: Up to 7 ... , development, production. Our product range is road studs, road signs, and traffic signs.traffic led solar road stud Features:1.Compressive strength index:30tons ... ,LED quantity :4pcs .Color :Red, yellow ,blue, green and white .Lighting type: Frequency flash /Normal on ;Enough power ,continuous working time ...