What is the most efficient solution to get highly accurate dot alignment in distance? The first appearance of laser pointer or low power laser dot alignment is not helpful at all. After constant development of high power 150mW 515nm green dot laser module and connect with 12V DC input power supply, it keeps work with the most intense forest green laser beam emission and the clearest green dot projection at great distance effectively. After acceptation of wide range electric current within 100V to 240V, high power 150mW green dot laser module keeps continuous forest green dot projection, also gets perfect protection from overheating and over current in continuous use. After efficient use of qualified glass coated lens and glass window in front of laser beam aperture, it keeps work with high beam transmittance and no decay light green dot alignment at great distance. Whenever green laser alignment gets correct installation and adjustment of both beam focus and dot targeting direction, it gets the most satisfied dot measuring result for all lighting occasions. Technical data: Item: Berlinlasers high power 150mW green dot laser module Laser class: IIIb Optic lens: glass coated lens Adjustable focus: yes Power source: 12V 1000mA DC input power supply Applications: drilling system, laser medical tech, military targeting, laser marking etc http://www.berlinlasers.com/high-power-515nm-forest-green-dot-laser-module-150mw-300mw