◆Exterior door concealed buckle design,Beautiful and safe. ◆The exterior door is installed in contact with the bottom box to install waterproof adhesive strips,The screw fixing holes are blocked with silicone plugs,It is best waterproof. ◆The distribution box needs to penetrate the housing to fix the wall. After the screw isfixed, it can be used on the silicone cap cover to prevent water ingress. ◆The housing has various ways to mount there served holes. lt is more convenient to install and use.