AGM Global Vision Sioux940 High-Power Long-Range Infrared Illuminator W/IR 940 nm LED Black 2x3x4. Infrared illuminators are used in areas where the level of natural light is not sufficient. An IR illuminator provides near-infrared light which although invisible to the naked eye can greatly enhance the performance of Night Vision devices. The illuminator features adjustments for field-of-view divergence and output power. AGM long range IR illuminators significantly extend the capabilities of Night Vision weapon sights and observation devices. Specifications for AGM Global Vision Sioux940 High-Power Long-Range Infrared Illuminator: Manufacturer: AGM Global Vision Beam Distance: 600 m Color: Black Battery Type: 18650 Battery Quantity: 1 Operating Temperature: -22 - 122 Fahrenheit Length: 6 in Weight: 0.49 lb Mount Type: Weaver Light Output: 940 lumens Battery Life: Up to 10 hours Attachment Type: Weaver Bulb Type: LED Beam Color: IR Features of AGM Global Vision Sioux940 High-Power Weapon Light Kits: Powerful long-range infrared illuminator High power IR-emitting diode Power adjustment Wide-range beam angle adjustment Precise adjustment of beam direction Invisible to the human eye Eye safe Lightweight and rugged Ideal for extreme low-light conditions Can be mounted on the Weaver rail or used as a handheld device Comes standard equipped with a rechargeable battery and charger unit Limited 3-year warranty Package Contents: AGM Global Vision Sioux940 High-Power Long-Range Infrared Illuminator Rechargeable Battery Charger AGM Global Vision 501SIOUX940IR1: Sioux940 High-Power Long-Range Infrared Illuminator W/IR 940 nm LED Black 2x3x4