IR may be used which have monochrome and big date/nights cams
IR may be used which have monochrome and big date/nights cams CCTV lighting – hence wavelength? 715-730nm – overt IR, produces a purple glow such as for instance a reddish travelers light. 815-850nm – semi-stealth IR having a faintly reddish shine only just visible. 940-950nm – covert IR undetectable into human eye. Infra-Red-light are often …
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