... light a large area. 2.it's easy to control and modify 3.light pole is very strong ... parameter 1.Light source:400W-1000W High pressure sodium lamp or high pressure metal halogen lamp.2.Lighting ... The frame of lamp board is made of high-quality steel, hot-dip galvanized5.Mode of switch: hand control, ... ,freight yard,highways,stadiums,flyovers,etc. 2013 hot sell the 30m high mast light with Q235