Hikvision-patented EXIR technology provides the best in breed illuminators for any zero-dark/pitch black environment. DS-2CD2212-I and DS-2CD2312-I, both series are specifically developed with this latest IR Illumination technology. EXIR technology offers the most advanced level of night-time surveillance capabilities. The technology also offers accurate facial recognition for advanced perimeter protection and intruder detection capabilities. Other features include EXIR’s robust illuminance uniformity to capture every detail even in the darkest of settings.