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If you’re looking to protect your home or business at night, then a CCTV system can help provide you with peace of mind. Although some ordinary cameras cannot see in the dark, night vision CCTV cameras can. In this post, we will take a look at how they work.
How Do CCTV Cameras Work at Night?
Most CCTV cameras employ infrared (IR) technology to see at night. You’ll notice that CCTV cameras with night vision are encircled by a lot of tiny LEDs if you take a closer look at them. During the night, these emit infrared light, which enables the camera to view even in complete darkness.
Because infrared light cannot be seen by the human eye, robbers cannot see that the CCTV camera is on. This is as a result of the fact that infrared light has a lower frequency and a longer wavelength than visible light. Overall, this implies that the exterior of your property will remain completely dark even if your camera is providing light to provide a clear picture.
Are Night Vision CCTV Cameras Black and White?
During the night, the majority of CCTV cameras do function in black and white, and many security cameras switch to a monochrome filter. During the day, they work in colour, but as the light level drops, they transition to the monochrome filter.
Additionally, some cameras contain a “IR Cut Filter” depending on the precise model you choose. These cameras apply the filter to block out IR light when they detect daylight, maintaining the accuracy of colours. Then, at night, the filter is automatically removed.
In addition to seeing in complete darkness, infrared cameras can also capture a crisp image while passing through smoke, dust, and fog. Additionally, installing them might not cost as much as you thought.
How Do I Know How Well the Camera Will See at Night?
Checking your Hikvision CCTV camera’s lux number is one of the best ways to determine how well it can see in the dark. In simple terms, the lux figure represents how much light the camera needs to function properly and produce high-quality images. The less light needed by the camera, the lower the lux value. Since true night vision infrared cameras are capable of seeing in complete darkness, a lux figure of 0.0 is frequently stated for an infrared security camera.
You should also verify the number of LEDs the camera has built in in addition to the lux value. The range of the camera’s vision increases with the number of LEDs it has. However, keep in mind that you might not always want to concentrate on long-range surveillance, especially if you’re keeping an eye on a location close to your home, like a porch or garage.
Infrared CCTV cameras are a good choice if you want to secure your house at night. Give us a call at 07860244274 if you’re thinking about installing CCTV cameras at your home or business for a free security evaluation and price. We offer Hikvision, Dahua, Swann and Spro night vision cctv camera systems.
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