Feature: 1. INFRARED LED: 850nm IR flashlight uses infrared IR 850nm LED emitters, advanced infrared LED with high efficiency and low thermal resistance. 2. RANGE OF 50‑150M: 850nm infrared hunting flashlight can produce a powerful impact with a focused beam at a range of approximately 50‑150m/164.0‑492.1ft. 3. ALUMINUM HOUSING: Infrared flashlight is built with full housing aluminum alloy, with a built in waterproof rubber circle at the end for better protection. 4. IMPACT RESISTANT: IR flashlight can be used for night hunting and night observation. Impact resistant, wear resistant, non corrosive, easy to clean and longer life. 5. RANGE OF APPLICATION: Night vision flashlight helps to have better night vision in camping, night fishing, night flying, sailing, caving and hunting. Specification: Item Type: IR Flashlight Material: Aluminium Alloy Size: Body Length: Approx. 160mm/6.3in Head Diameter: Approx. 47mm/1.9in Tail Diameter: Approx. 32mm/1.3in Power Supply Battery: 1 Section 18650 Lithium Battery (Not Included) Light Source: IR Infrared Light Wavelength: 850nm Use: For Night Vision Goggles, NVS, NVG DIY, Cameras, Cell Phones, Monoculars, Goggles And Cameras That Do Not Block Infrared Light As An Auxiliary Fill Light Gross Weight: 267g/9.4oz. Package List: 1 x IR Flashlight (Not Included Battery) Note: 1. Please allow some error due to manual measurement.2. With bare eyes you will not see any light (only a small and faint red glowing LED to indicate that your flashlight is on)