... Waterproof grade IP>67 carton packing Solar Road Stud ,reflective solar road stud,solar led road stud, reflective stud .Discription :Solar cell: poly-crystalline silicon ... pcs Luminosity colors: red, green, blue, white, yellow (for any choice) Luminous mode: varying type /Constant TypeWork time: ... 108 hours above for Varying Type(150times/minute); and more than 24 hours ...