No Mistake Work of Berlinlasers Green Laser Line Generator According to the selection of Berlinlasers green laser line generator, users just feel it quite easy to get quite clear and accurate line alignment after its selection of external DC input power supply. Available with much higher operating voltage of 8.4V operating voltage electric power source, it is just support green laser module with the maximum output power of 50mW, making sure of the clearest green laser line targeting for all industrial machinery processing works. Users can make free selection of output power and laser lens degree, this green laser module is just making the easiest line positioning result for all industrial production works. http://www.berlinlasers.com/515nm-5mw-50mw-green-laser-line-generator