Many cameras run at a high operating temperature because they process heavy data locally (like motion detection or 4K encoding). Night vision mode also generates significant heat from the Excessive Heat:
Integrated microphones and speakers allow for real-time deterrence of intruders, acting as a "hot" deterrent. network camera networkcamera hot
Not all "hot" cameras are created equal. Standard outdoor IP cameras are generally rated to operate in temperatures up to 115-120º F (~46-49º C), usually relying only on passive cooling via heat sinks. However, modern manufacturers are pushing these boundaries significantly. Many cameras run at a high operating temperature