solar road stud,road marker,traffic stud solar road stud,road marker,traffic studsize:108*101*22.5mmSolar cell: poly-crystalline silicon / single-crystalline silicon (3v,75mA)Storage battery: Ni-MH (1200mAH) / Super Capacitor (120F)Light source: super luminosity LED;LED quantity: 4 or 6 pcsLuminosity colors: red, green, blue, white, yellow (for any choice)Luminous mode: varying type /Constant ...