Night Optics IR-K2 Pro Extra-Long Range IR Illuminator NO-NA-IRI-0K2 is the precise, highly accurate infrared illuminator that can light up your targets stealthily from an extra-long distance away. Though no more powerful than other IR illuminators by Night Optics, the IR-K2 Pro is highly focusable, capable of projecting a narrow spot beam accurately into the distance, where it illuminates targets in your night vision you might not be able to see otherwise. These Night Optics night vision accessories are equipped with a three-position power switch that's adjustable in 50% increments, so you can tailor your illumination to your specific situation. The Night-Optics IRK2 Pro 3-Position Infrared Illuminator allows you to zero in the device with integrated windage and elevation adjustments, an essential component for a night vision accessory with such long range. With a wavelength of 805 nm, the IR illuminator's beam is all but invisible with the naked eye, yet will show up exceedingly well in your night vision. For an extra-long range illuminator that will greatly increase the power of your Night Optics night vision device, equip the NightOptics IR K2 Pro 805nm IR Illuminator.