I am trying to secure the perimeter of my business. I'm looking for a Hikvision or Dahua good value low light bullet camera that also has good detail (3mp minimum) during the day. I do have some ambient light from wallpacks on the side of the building, it's not the greatest but it's there. I know there's been many models reviewed and tested, I want to know what the community recommends, and hopefully there is some consensus on a specific model that is great all around. I want to buy at least 5 units. I've always owned Hikvision and do prefer that, but im open to Dahua too.