solar aluminium road stud / road safety / cat eye / track spike solar aluminium road stud solar road safety / cat eye / track spike 1.Solar cell:poly-crystalline silicon/single-crystalline silicon(3V,75mA)2.Storage battery:Ni-MH (1200mAH)/super capacitor(50F)3.Light source:super luminosity LED4.LED quantity:4pcs/6pcs5.Light source color:red,green,blue,white,yellow(for any choice)6.Luminous mode: ...