Security cameras stop working once electric power is out. However, battery-powered security cameras are not affected by it. Plug-in security cameras will definitely not work if there is no electricity as this is what makes them work. But wireless ones can still function despite the power outage.

Does a CCTV camera work without light?

The short answer is no. CCTV cameras require electricity to fully function, but it is possible for them to work even when the power is down.

Does CCTV camera work in dark?

Most CCTV cameras do operate in black and white during the night, and many security cameras adopt a monochrome filter during hours of darkness. ... Not only can infrared cameras see in conditions of total darkness, but they can also travel through smoke, dust and fog, capturing a clear image.