In order to make highly clear dot projection under night vision, not the same as any simple visible laser pointer, it should be quite nice experience to make use of a long wavelength made Berlinlasers 808nm infrared dot laser alignment. It projects invisible infrared laser beam and IR reference dot from laser beam aperture. Only if it gets proper installation onto night vision device, it makes the most efficient infrared laser light conversion and highly clear infrared reference dot projection in all night vision fields. This 808nm infrared dot laser alignment enables easy use after connect with DC input power supply. Accepting wide range electric current within 100V to 240V, it is keeping continuous IR dot projection, but also getting perfect protection from overheating and over current in continuous use. Users should select correct output power and make proper adjustment of laser beam focus and laser dot targeting direction, this infrared laser module makes high precision dot alignment in all night vision fields perfectly. Technical data: Item: Berlinlasers 808n infrared dot laser alignment Output power: 5mW-400mW Optic lens: glass coated lens Applications: infrared laser sight, military targeting, surveillance, and intelligence system etc http://www.berlinlasers.com/808nm-infrared-dot-projecting-laser-alignment