High Mast Street light normally refers to illuminating device composed of steel conical pole (over 18m) and combined brackets of high power lamps. Components include lamp housing, internal lamps and other electric device, light pole and foundation. High Mast Street light is widely applied at squares, air ports, parking lots, ports, highway and etc. Light source is usually sodium flood lamp or LED flood lamp. Pole is usually jointed by 2~3 sections of steel cone-shaped pipe. http://www.energy-nenoble.com