Description:This focusable 20mW 405nm blue-violet dot laser module employs qualified 405nm red laser diode, generates the stable and reliable blue-violet laser dot applicable for various industrial alignments and positioning work. Aircraft aluminum shell with efficient thermal conductivity ensures its stability and long service life.Specification: Brand MTOLASER Laser Power 20mW Wavelength 405nm Beam Shape Dot Variable Focus YES Output Light Visible Light Working Voltage DC 5V Optics Focusing lens +K9 glass wave type lens Shell Material Aviation Aluminum Operation Temperature ±50в„ѓ Service Life 8000h Dimension (D*L) 14.5mm x48mm Optimum Working Distance                                The brightness of 405nm blue-violet lights is weak and not suitable for long-distance use Adapter Plug US Plug Adapter Input Voltage AC 100-240V 0.3A 50-60HzFeatures:- 20mW stable output power, variable focus, 405nm blue-violet dot laser module.- Good heat dissipation ensures its long service life. - Designed with locking ring, ensure its anti-interference performance, high stability under vibration condition.- Come with mount holder, rotate the adjust the angle for easy placement and installation.- Widely used in laser alignment, positioning for sewing equipment, embroidery machine, and other industrial, medical and laboratory equipment. CAUTION:
1. Light is emitted from the aperture. Avoid Direct Eye Exposure. Keep Away from Children and Pets.
2. Wear protective glasses for close use3. Pay attention not to ignite black objects,be careful when using distances within tens of centimeters.
 Package Included:1 x Blue-violet Dot Laser Module1 x Power Adapter (AC 100-240V to DC 5.3V)1 x Mount Holder