Armasight IR850 Infra-Red Illuminator for Nyx7C Night Vision GogglesArmasight Infra Red Illuminator IR850 significantly enhances the performance of Gen 3 night vision device especially in low light conditions such as dark room or deep forest with no ambient light. At the same time, the IR850 stays less visible for human eye than other versions of IR illuminators. Armasight Infra Red Illuminator IR850 is installed on night vision devices fitted with Weaver type base with the help of special bracket.