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Home > Surveillance-video.com Site Map > Knowledge Corner > Day Night & Low Light Security Cameras
There are many thing to consider when selecting the right security camera for your application. But when you are faced with a low light application there is one spec that you need to pay very close attention to. This is known as the camera Lux rating or Minimum illumination rating. Based on this you will be able to determine whether a camera can perform well in low light application or not. Lux is the lumen (one candela per radian of a solid angle) per square meter. The closer to zero the Lux rating the better the camera will perform in a low light application. For example night vision security cameras which are aided by infrared beams that are invisible to the human eye, have a Lux or minimum illumination rating of 0 meaning the security camera can see in complete darkness with no light required. Most monochrome or black and white security cameras have a lower Lux rating than color security cameras therefore they perform better in low light situation. However in recent months advancements in color camera technology have improved low light performance of some color cameras which are known as day night cameras. It must be noted that these cameras will automatically switch to a black and white picture at night for optimum performance in a low light situation and switch back to color once the light level is adequate.

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