I need to connect a flood light to the exterior of my house. Previously, an on-wall lamp was installed, and this is how the exterior wall looks like after I uninstalled it. There are 3 sets of wires, though I'm going to use only one set.
This is the flood light I need to connect. Note that I can not replace its cable as the body is IP65 sealed and can not be dismantled.
What would be a correct and aesthetic way to install the flood light?