Wave length: 532nm. Laser line accuracy: 20" (+/- 1mm @10m). Emitting angle: > 120°. Output power (Center) : Class II - less than 1mW. 2.7~3.3 VDC operation. Dimensions: D13 x 70 mm. * Green Line laser. The best line-accuracy and the widest emitting angle Green line laser module for use with high-precision devices. * 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. Multiple glass lenses Lens and Quartz Cylindrical Lens provides Line Laser.