(Industrial Use Line Laser) Quarton Laser Module Vlm-635-27 Lpt-10 Red Laser APPLICATIONS: High accuracy Red Straight Line Laser, for Industrial high-precision leveling, alignment, adjusting, positioning, measuring and targeting device. Wood processing. Metal processing. Stone processing. Textile industry. Food industry. Automotive industry. Medical science. High accuracy Red Straight Line Laser, for Industrial high-precision leveling, alignment, adjusting, positioning, measuring and targeting device. Wave length: 635nm. Laser power output : Class I ? less than 0.39mW. (Update 03/19/2021 - The laser output (the brightness) is exactly the same as before. The reason why the Laser Class is changed now is that, according to the latest IEC 60825-1 regulations, the output is measured by 7mm aperature stop at the position of 10cm. Therefore, you see that its Class is changed from "Class II" to "Class I" now, even though the brightness is exactly the same as before.) Red Line laser. The best line-accuracy and the widest emitting angle line laser module for use with high-precision devices. 2.6~5 VDC operation. Dimensions: D12.5 x 30 mm. This module has integrated quartz cylindrical lens, collimating lens, laser diode, and APC driver circuit. APC driver circuit enables constant Laser output power. Includes patented solid brass structure for the best shock resistance and better heat transfer consideration. Aspherical Plastic Lens and Quartz Cylindrical Lens provides Line Laser. Laser line accuracy: 40" (+/- 1mm @5m). Emitting angle: 90. Laser line accuracy: 40" (+/- 1mm @5m). Emitting angle: 90