300mW 405nm Focusable Blue Violet Laser Module for DIY Laser Printer Engraving Machine Engraver

Specification: Heatsink Material Aircraft Aluminum Laser Grade Class 3 Output Power 300mW (0.3W) Wavelength 405nm(blue Violet laser) Voltage DC 12V Beam Shape Dot (Focusable) Working Temperature -40-75℃ Size 64x33x33mm Features: 1. Adjustable focal length. 2. DC 12V power supply (please make sure the power supply is right)