UniqueFire T20 IR 940nm LED Adjustable Focus Black Flashlight 3 Modes Zoomable Night Vision Torch with Memory Function QUICK CHANGE LED PILL SYSTEMThe UF-T20 has unique feature a quick change LED pill system that enables the colour of LED to be changed easily from red, green, white or infrared without the use on any specialist tools. (extra LED pill purchased separately) LONG RANGE ILLUMINATIONUtilizing high power IR black 940nm LED emitter- the smallest infrared LEDs with more than one watt of optical power. Rotary focusing system: illuminate much farther with smaller light spot. CAUTIONS Infrared light is invisible to human eyes. It is designed to be used with night vision device.(Only a small and faint red glow on the LED to show you that the torch is on). BE AWARE that not all infrared cameras & night vision scopes will pick up 940nm IR light. This is because 940nm is much further away from the visible light spectrum than 850nm making it harder for a camera sensor to pick up. Check that the camera equipment you are using is compatible before you buy. ASPHERICAL LENS 38MM Lens rotary focusing torch suitable for hunters. The perfect torch for hunters.Zoomable night vision torch,as well as the ability to focus in for a tight spotlight and back out for a great effect. MODE MEMORY 3 Modes system from Low-Mid-High with Mode Memory (This Flashlight Remembers and Turns on to the Last Setting that it is Operated on). It is powered by 1 x 18650 rechargeable battery(Without Battery).