Either dot alignment work is processing at close or long distance, not easy to reach with a simple green laser pointer, it makes good job with Berlinlasers 515nm green laser diode module. In a lot of industrial and high tech precise dot measuring work fields, the special use of import 515nm green laser diode, metal heat sink cooling system and APC, ACC driving circuit board are configured with 16mm and 26mm diameter metal housing tube. It allows convenient installation and highly stable red dot projection for long lasting use perfectly. This 515nm green laser diode module is applying qualified glass coated lens. It should have to work without light decay or dim, thus it passes through up to 24 hours aging preventing and beam stability tests. In practical dot measuring work fields, it should be selecting with correct output power and making proper adjustment of both green dot diameter and dot projecting direction. Within the maximum distance of 3 meters, this compact size tube made 515nm green dot laser brings user no barrier and no mistake dot generation for both industrial and high tech fields perfectly. Technical data: Item: Berlinlasers 5mW to 50mW 515nm green laser diode module Laser class: IIIa, IIIb Optic lens: glass coated lens Tube diameter: 16mm and 26mm anodized aluminum alloy Applications: drilling system, laser marking machine, laser engraving machine, lab experiment and scientific research work etc https://www.berlinlasers.com/515nm-green-laser-diode-module