In process of highly precise and fine enough line measurement, no matter it is pointing at close or long distance, or other hard reaching places, it is operating easy and quick with an intense beam and highly bright device of 532nm green line laser module. In occasion that it applies qualified glass coated lens with wide fan angles and good electric driving circuit board inside highly durable metal housing tube, only after its easy connects with an external electric power source supply, it just keeps work with highly straight and highly fine green reference line projection onto various working surfaces effectively.Not spending extra time on battery change, the real use of 532nm green line laser module is always making easy and quick green laser beam emission from laser beam aperture. It is applying advanced 532nm green DPSS laser system within 5mW to 100mW. After special use of AC/DC adapter with different operating voltage of 5V, 9V 1000mA DC power supply, it is keeping work with highly visible green laser beam emission at several miles far away. In practical line measuring work, this green laser line generator makes good job for highly clear and fine green line projection within the longest extending distance of 25 meters and multiple lighting occasions etc. In order to make highly clear and fine line measurement onto various working surfaces, 532nm green line laser module is applying a qualified glass coated lens within 10 to 110 degree. It projects high quality Gaussian laser beam from beam aperture. In occasion that it gets quite low laser beam divergence of less than 1mrad and special TEM00 laser beam mode, whatever kind of working surface it is pointing, this laser line generator is projecting extremely low laser beam divergence green line in use.It projects highly straight and highly fine green lien within 0.5 meter to 6 meters. Under operation of basic measurement and experiment of technical data, after correct use of output power and glass coated lens fan angle, within freely installed distance of 3 meters, this green line laser module makes sure of highly precise and no barrier line generation in distance. When it makes freely adjusted laser line fineness of only 0.3mm at 10cm, 1mm to 2mm at 2 meters, within the maximum work distance of 25 meters and other high lighting working occasion etc, this industrial alignment laser just assures the highest level of accuracy line generation in all application fields perfectly.