NOKIN is manufacture of Plastic Solar Road Pavement Markers in China. NK-RS-K1 Plastic Solar Road Pavement Markers Body material is PC. Power supply is Solar panel( monocrystalline 2.5V/0.2W). Battery is NI-MH 1.2V/800MAH or Super capacitor£¨120F). Flashing model is Blinking or constant or synchronous blinking. LED Color is White Green Red