Newly updated laser IR illuminator, model LN-ELIR is built from the thermoplastic materials, which arelighter and stronger than aluminum. The unit allows smooth power adjustment with rheostat-stylewheel. The beam is fully adjustable along the X/Y axis as well as for the actual beam width.LN-ELIR-3 fits directly to the Weaver or Picatinny rail and can be used in conjunction with any traditionalimage intensifier or digital night vision device. Compact and lightweight design Smooth power adjustment rheostat wheel Fully adjustable beam (width and position along the axis) Class-I, Eye-Safe 850nm Infrared Laser Luna Optics One-Year Limited WarrantyIncluded Accessories: a tethered protective cap, an adjustment tool, and a mount (installed).