... nuts. Technical parameter 1.Light source:400W-1000W High pressure sodium lamp or high pressure metal halogen lamp. 2.Lighting protection level ... :IP44 4.The frame of lamp board is made of high-quality steel, hot-dip galvanized 5.Mode of switch: hand ... square,railway stations,docks,freight yard,highways,stadiums,flyovers,etc. high mast light of tianxiang lighting equipment co.,ltd