This project is to install street lights on roads and highways in Karachi, Pakistan.There are lamps and lamp holders respectively.The longitudinal center line of the lamp installation and the longitudinal center line of the lamp arm should be consistent, the horizontal horizontal line of the lamp should be parallel to the ground, and there should be no skew after tightening.After the material arrives at the site, it can be installed and used after unpacking inspection and the owner's consent.