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In order to make clear dot projection at close distance, not the same as manual dot projecting tool or a laser pointer, it makes even better job with a 515nm 5mW green laser diode module. It gets constant power source supply and good use of cooling system. Within constant dot projection of 8 to 10 hours, it maintains highly stable performance and highly clear forest green dot projection in continuous use.
This 515nm green dot laser applies qualified glass coated lens and passes through a series of laser beam stability and aging preventing test up to 24 hours. It assures highly clear and no decay light dot projection within long extending distance of 25 meters. According to correct use of output power and easy mounting onto industrial device, it assures high efficiency, low price and long lasting dot alignment for drilling system, industrial precise dot measurement, military targeting, high tech etc.
https://www.berlinlasers.com/515nm-green-laser-diode-module
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