I bought these cameras for my 16 channel Q See DVR because my Zosi cameras had terrible night vision. Resolution and perfect color during the day and really good night vision (better than 100ft) and also very clear. When my external lights are on they switch back to day mode and show crazy colors at night, none of my other cameras do this or even come close to the resolution of these cameras. My plan is to replace all my cameras with these over the next few months so I really hope they don't decide to sell them before I get what I need. These cameras work with other DVRs as I bought these cameras before I bought the Amcrest DVR and they are even clearer on the Amcrest DVR than the Q-see DVR I had so I recommend the Amcrest DVR as well . . This is the Amcrest DVR I bought: (Amcrest ProHD 1080P 16CH CCTV DVR, 16CH 1080P, Support 960H/HDCVI/HDTVI/AHD/IP, HDD and Cameras NOT included, Remote Smartphone Access (AMDV108116) as I said, that is best camera/DVR combo I've ever bought and I've tried Samsung, Q-See, Zosi and a few others but they weren't as good as this one. I've only had them about 6 months but have so far it exceeded my expectations I've also worked with the Amcrest DVR and had better resolution than the old DVR It was a good purchase!I'll update this post if anything changes over the next few months but so far so good!
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