If line alignment is processing with the highest level of accuracy, it is brave solution to apply a 10mW 515nm green line laser module. When it adopts 16mm aluminum alloy housing tube, after getting enough space for metal heat sink cooling system, it makes sure of excellent thermal emitting and highly stable green line alignment within daily use of 8 to hours. After the use of separate crystal lens, 515nm 50mW green line laser module projects non Gaussian distribution green laser beam, and highly fine green line in distance. It is performing with the same brightness green line from middle part towards both ends. Only according to correct use of optic lens degree and proper adjustment of laser beam focus, it makes sure of the most precise forest green line alignment for all industrial line alignment works perfectly. Technical data: Item: Berlinlasers 515nm 10mW green line laser module Laser class: IIIb Optic lens: 10-93 degree separate crystal lens Adjustable focus: yes Power source: 5V 1000mA AC/DC adapter Applications: sand milling, lumber machine, stone, wood, garment and metal processing etc http://www.berlinlasers.com/uniform-520nm-green-line-laser-module