When users are trying to make highly clear dot alignment in those of night version fields, none of visible laser device can be comparable with a long wavelength device of 808nm infrared laser diode module. It is operating as an accessory part, equipping with 5V, 9V 1000mA AC/DC adapter and night version device, it assures high intensity infrared laser light emission, and efficient conversion into highly clear and accurate infrared dot alignment at various work distances. It applies qualified glass coated lens, after special use of thermal emitting system and constant power source supply, within freely installed distance of 3 meters, this infrared dot laser makes sure of no barrier, no mistake and no manual labor force input dot alignment for military targeting, laser medical therapy, surveillance, intelligence system, night hunting and infrared laser sight etc.https://www.berlinlasers.com/808nm-infrared-laser-diode-module