Not bad for a entry level ir illuminator - Armasight IR810 Infrared Illuminator for Night Vision Monoculars

Let me just say this is best suited for airsoft, not so much for real steel. The system works great in conjunction with my Sightmark ghost hunter 1x24 monocular. There were no notable differences when i used the 810 nm and the 850 nm variant. The focal beam diameter was decent at about 100 yards and illuminates only that part of where i am looking. The adjustable beam focus gave me a much farther range of detection compared to the monocular's built in IR light. It does seem a bit exaggerated, it does not transform a gen 1 unit into a gen 2 as it lights up only 1 spot of your peripheral vision dependent on where you would look, otherwise you would be better off with a gen 2 for better night viewing quality. But for me, at least i can see what's far out there with this IR light, and it gets the job done.