Luna Optics Laser IR Illuminator to improve long-range visibility and aiming precision with your night vision device. This external infrared illuminator attaches to your NVD via a Picatinny/Weaver mount and can cast up to 0.5mW of eye-safe coherent infrared laser light on your targets. You can also change beam divergence by twisting the bezel ring from 0.1° to 5°. For precision alignment with the line of sight of your night optic, the illuminator also has beam direction adjustments for two axes. Also included with the illuminator are a direction adjustment tool and a belt pouch.