Armasight extra long-range infrared illuminator IR810 provides greater image intensified viewing capabilities when the environment has little or no ambient light. IR810 is used in areas where the light level value is not sufficient for surveillance. An IR illuminator provides near-infrared light which, although invisible to the naked eye, can greatly enhance the performance of night vision devices. The Armasight IR810 features adjustment for radiation divergence and output power. Armasight long-range IR illuminator significantly extends capabilities of night vision weapon sights and observation devices.