When dot measuring work is processing under night vision, it is making an easy and quick dot indication after the use of Berlinlasers 980nm infrared dot laser module. It is emitting invisible infrared laser beam directly from 980nm infrared laser diode. Being made with an inner metal heat sink cooling system, equipping with durable aircraft used aluminum alloy housing tube with 16mm and 26mm diameter, it is achieving superior nice thermal conductivity, and increasing stability IR dot projection for both long time and long distance use.  The real dot measuring work with 980nm infrared dot laser module enables freely selected output power of 100mW to 500mW. It is performing with highly intense IR laser light emission. Being made with qualified glass coated lens, it is assuring high transmittance IR laser light emission, but also projecting highly clear IR reference dot projection at great distance of 100 to 1000 meters. When infrared laser alignment selects correct output power, after its proper adjustment of beam focus and installation onto other night version device, it makes the most precise IR dot indication for all night vision fields. Technical data: Item: Berlinlasers 980nm infrared dot laser module Output power: 100mW-500mW Laser class: IIIb, IV Optic lens: glass coated lens Adjustable focus: yes Power source: 5V, 9V 1000mA DC power supply Application: night hunting, military targeting, infrared laser sight, lab experiment etc