Higher resolution surveillance cameras can consume more power than lower resolution ones, but the power consumption is not directly proportional to the resolution. The power consumption of your camera depends on several factors, such as the image sensor type, lens, and other features. For example, cameras with larger image sensors or those that use infrared lighting may consume more power.
However, newer high-resolution cameras are designed to be energy-efficient, and many have power-saving features such as motion detection or automatic shut-off. You need to consider the power requirements of the camera when selecting a power source, such as a battery or AC power supply, to ensure that it can provide sufficient power for the camera’s needs.