Not simply adopting a manual line drawing device, such as a square meter or blocking board, it would be efficient choice to make use of Berlinlasers pro red line laser alignment. It projects highly pure and bright red laser light from 635nm red laser diode. Among all visible laser devices, it gets the lowest laser beam divergence and quite special laser beam mode of Tem00, this red laser module is obtaining a highly straight and fine red line onto all targeting surfaces continuously. This pro red line laser alignment enables immediate work after connect with a DC input power supply. Within wide range output power of 5mW to 100mW, after correct equipment with 5V, 9V DC power source, it is workable with highly intense and powerful red laser beam emission and highly clear red line projection at various distances. This laser line generator enables easy selection of output power and fan angle, after correct adjustment of laser beam focus and red line targeting direction, it makes highly precise and quick response line alignment onto all targeting surfaces. Technical data: Item: Berlinlasers pro red line laser alignment Wavelength: 635nm Output power: 5mW-100mW Laser class: IIIa, IIIb Optic lens degree: 10-110 degree glass coated lens, separate crystal lens Adjustable focus: yes Power source: 5V, 9V 1000mA DC input power supply Applications: sand milling, textile garment processing, laser cutting, lab experiment etc http://www.berlinlasers.com/pro-red-line-projecting-laser-alignment