Dahua cameras are good as well. They are another Chinese manufacture (like Hikvision) so you certainly should be taking precautions like putting the devices on their own VLAN and preventing them from having internet connections. But honestly in this day and age, you should be doing that with all of your CCTV and IOT devices - not just some of them (based on their brand).
The Dahua "5442" series cameras are really the king of IR cameras in this price range (under $200). Their 4mp resolution along with the 1/1.8" sensor size allows some very good low/no light performance.
https://www.dahuasecurity.com/products/All-products/Network-Cameras/WizMind-S-Series/4MP
Dahua also has some newer "full time" color cameras with a 1/1.2" sensor size which again provides some very impressive low light performance. Those cameras don't have any IR capabilities however, so you still need some sort of light source for them to work. The 5442 series with IR is better in no light situations.
There are several considerations to look at when considering a camera.
#1 - sensor size. The bigger the better. (Remember they are fractions however, so a 1/1.2" sensor is much larger than a 1/2.8" sensor). If the manufacturer tries to "hides" the sensor size they are using (I'm looking at your Ubiquity), it is because it is tiny and worthless.
#2 - resolution. Most people want the highest resolution possible (ie 8k), but the higher the resolution the smaller the individual pixels are if the sensor size stays the same, but resolution increases. A smaller sensor size means the sensor can capture less light and it makes low/no light performance worse. Therefore more pixels is not always better.
#3 - "DORI" distances - this is the distance from the camera that you can "detect", "observe", "recognize" or "identify" a subject. It is based on resolution and field of view. You need to pay close attention to these numbers and your overall CCTV design and pick cameras that match your goals. Far too often people expect to be able to put a camera in each corner of their house and have 360 degree coverage of their entire property only to be disappointed that the clarity of the footage of someone breaking into their car 25' away is so poor that they can't identify a subject. They want to blame the camera when it's actually the design of their overall system. You can't beat physics. The wider view a camera shows, the closer the individual must be to the camera in order to get "identifiable" coverage. Many times this distance is well under 20' (which isn't far from the camera at all).
#4 - don't buy into the marketing crap manufactures will tell you. ANY camera can be made to look good in low/no light conditions when there is nothing moving in the frame. I can't tell you how many videos I see of nighttime conditions that look like it's daylight outside - but it's always a static image - a driveway with a car in it, or a backyard image. They never show any movement however like someone walking around. This is because when you introduce movement, the faults of bad cameras will be immediately evident. Ghosting (parts of the person disappearing in some frames) is common when the gain is turned up too much. Blurring of the subject is common when the shutter speed is too long for the amount of movement expected. A good performing camera is one that you can set these parameters low enough that you get good clear images without ghosting or blurring regardless of the lighting conditions. That is hard to do and most cameras will fail because the sensors are too small and the resolution is too high.
