I have 10 cameras currently. 7 are interior and 3 are exterior. The 3 exterior are dahua 2mp starlight cameras. I have them hardwired. Recently someone vandalized my property and i want to put more exterior cameras up. I haven’t bought cameras in years and am out of the loop. I want to add at least 2 more exterior cameras. I was also interested in maybe some type of ptz that will survey an area and then maybe auto track people? I have blue iris but am not super savy but have no issue doing the physical install. I see dahua has starlight and starlight plus and some color night camera tech. What is the difference? I’m looking for good night quality and affordability. Thanks