Design driven concept

The first design was trying to incorporate the lower lamp section into the main body.
The problem I was met with is that the light source needs to be able to move in both an X and Y axis in order to be able to track a target.

I felt at this stage that the only option was to incorporate a ball like design into the product that would work like some ceiling mounted CCTV cameras I had seen during my research. This was going to allow me to rotate and pivot the light but was still leaving the PIR section behind. ???