The engineers at ATN Company know that people usually want long ranging IR illuminators so we don’t disturb wildlife and recreation from their habitats. The draw back of those clip-ons is that they don’t have large screens, and they generally are difficult to use when faraway from a scope. But https://infraredlightforscope46790.ageeksblog.com/27516245/the-ultimate-guide-to-infrared-light-for-night-vision-scope