visible light

Good Tips for Avoiding Hot Spots When Using Infrared Surveillance Cameras

As more retail stores sell lower cost video surveillance cameras, the level of expertise given to the customer is waning leading to almost pointless protection. A lot of low cost surveillance cameras have integrated infrared (IR) lighting positioned in a ring surrounding the lens, which probably sounds like a great approach because these cameras can see at nighttime. In fact some have a specification of zero lux. While it is true that they will work in complete darkness (0 lux), what is actually not mentioned is at what range.