Correct camera choice is the single most important thing to get right on a CCTV system. The number of TVL and the IR range have very little to do with determining how good or suitable a camera is.
We are always happy to discuss your project with you and give advice on which cameras might best suit your needs. Cameras are made specifically for us to our specifications. This allows us to choose the best electronics and combine them with a cohesive range of lenses and camera body options. Have a read of our CCTV camera buying guide.