This POE eliminates the need to arrange cables and plug them in, and the camera deployment points are diverse and not limited by power supply. And it can achieve the advantage of centralized power supply. At the same time, it has energy-saving, safety, lightning protection, etc. WiFi Mini Camera

But there are also drawbacks: the power supply should not be too high. For example, cameras with more LED or infrared lights cannot be used, and most ball machines cannot be used even if the power is too high. The POE switch requires high requirements. Once the switch power supply is damaged, all cameras cannot work, and it is recommended not to be too far away, otherwise the power supply may be insufficient. Long Standby Mini Camera

2. Non POE cameras
Non POE power supply means that each camera has a separate power supply.
It is generally recommended to use non POE power supply for long distances, while POE can be considered for close distances.