When users are trying to make highly clear and accurate dot alignment for all night version fields, it is not easy to reach with a simple manual dot projecting tool, but making good job with a long wavelength device, such as a 808nm infrared laser diode module. It emits highly intense and powerful infrared laser light from a 808nm infrared laser diode within 100mW to 400mW. Designed with a metal heat sink cooling system and APC, ACC driving circuit board, after operation with 16mm and 26mm diameter metal housing tube, this infrared dot laser is working well with constant infrared laser beam and infrared dot emission, and maintaining good laser beam stability within long lasting time of 8 to 10 hours. A correct output power made infrared dot laser makes high precision dot alignment for military targeting, intelligence system, laser medical therapy, lab experiment, optical instrument etc.https://www.berlinlasers.com/808nm-infrared-laser-diode-module