Easy Use of 660nm Red Laser Diode Module For Pipeline Alignment Works Cooperated with advanced 660nm red laser diode tech and a qualified glass coated lens inside a high duration anodized aluminum alloy housing tube, it is manufactured into a professional dot aligning tool of a 660nm red laser diode module. It generates powerful red laser light directly from an import 660nm red laser diode within 5mW to 500mW. Equipped with cooling system and APC, ACC driving circuit board inside a durable housing tube, it gets superior nice heat dissipation and ultra stable red dot indication in long term and long distance dot positioning works. After quite easy connects with DC power supply and proper installation onto correct position, during pipeline installation, red laser diode module is installed at one end of the pipeline, with a receiving target placed at the other end. By adjusting the pipeline's position so that the red laser dot accurately falls on the receiving target, the pipeline is aligned and its straightness and coaxiality are guaranteed. https://www.berlinlasers.com/660nm-5mw-100mw-red-laser-diode-module