How does glass coated lens 515nm green laser line generator work in long lasting use?

Unless the use of any prior line drawing or printing work, in order to make high efficiency and high fineness line alignment, it always makes good job with a Berlinlasers 515nm green laser diode module. In various industrial precise line measuring work fields, only after easy connects with DC power supply and proper use of thermal emitting, it achieves high purity red laser light emission and highly reliable red line alignment in constant use.
Employed by a qualified glass coated lens within 10 to 110 degree and glass window inside durable metal housing tube, this 515nm green laser module enables highly fine and straight green line projection within 0.5 meter to 6 meters. Within freely installed distance of 3 meters, not limited by long distance or high height, it assures good direction and high precision forest green line alignment in all occasions perfectly.
Applications: lumber machine, laser cutting, saw mill, laser car wheel alignment system, military targeting etc
https://www.berlinlasers.com/515nm-5mw-50mw-green-laser-line-generator