UniqueFire 1504 940nm IR Flashlight Infrared Torch 67mm Lens Adjustable Focus Night Vision Torch for Hunting POWERFUL LONG RANGE ILLUMINATION: Utilize high power IR black 850nm LED emitter- the smallest infrared LED with more than one watt of optical power, a 3-Mode memory driver (High-Medium-Low) (Leave the torch on in your preferred power setting for 2 seconds or more and it will switch back on in the same mode next time). 67MM ASPERICAL LENS:Lens focusing system:4- 40rotary focusing adjustable. Featuring a 67 mm aspheric lens, this torch has the ability to offer a wide flood light effect for short to medium ranges and a pin point zoom for long range illumination. ROTARY FOCUSING SYSTEM: Combined with the focusable head, you can always achieve perfect illumination levels with minimal fuss. Invisible to the human (and animal) eye, you will be completely stealthy when used with a digital night vision system! (The LED does give off a faint red glow, just no visible beam). QUICK CHANGE LED DESIGN: Designed with a quick change LED `Pill` system, you can have multiple coloured inserts for your lamp and change them in the field if you decide to use another colour, or change your quarry. SOLID RELIABILITY & SIZE: Body made of Aircraft Aluminum Alloy.Dimension: 160mm(+25mm)(Length)/71mm(Head)/30mm(Body)/40mm(Tail).Weight: 470g.Use for 1 x 18650 Rechargeable Battery Handheld Flashlight ( Battery is NOT Included) Armasight Drone Pro Yukon Photon Pulsar N550/750 NiteSite NS50/200 Viper-Wolf Ward D vision DIY night vision