Usually, the selection will be based on the project requirements, if not, let us recommend the design to the client, we will consider the following factors: road width and street lighting installation, one-side no lights, double-side symmetrical cloth lamp or double-side cross-mounted lamp, after determining the height of street lamp, according to the height of the lamp cap power, such as 5 meters -6 meters pole, can be equipped with 50-100 W power, 7 meters -8 meters pole can be equipped with 100-200 W lamp cap, 9 M -10 m pole can be equipped with 150 -200 W lamp, 11 -12 m pole can be equipped with 150 -300 W lamp, in addition, according to customer requirements for lighting ratio.