I initially bought Hikvision Chinese cameras from China. After a couple of years of mostly good service I decided to upgrade. I decided to go the LTS Camera route. Hikvision protocols and quality but with US software and support. More expensive yes; but being able to return the camera if there was a problem, no Chinese firmware and US shipping made the difference in my opinion. Currently I am liking the 4 mp turrets; the only problem there are no lenses longer than 4mm. For those instances where I needed a longer lens, there is a vari-focal 4 mp bullet camera that works quite well.