405nm 300mW Violet Dot Laser Module With Holder For DIY Laser Engraver

product description Specifications: Cooling Material Aviation Aluminum Laser Level 3 Output Power 300mW (0.3W) Wavelength 405nm (blue-violet laser) Voltage DC 12V Beam Shape Point (Focusing) Operating Temperature -40-75 ℃ Size 64x33x33mm Features: 1. Adjustable focal length. 2. DC 12V power (please confirm the power supply is correct), 2-pin connector. 3, with a cooling fan aluminum radiator, to ensure long working hours. 4. With constant current driver board to ensure stable output power, suitable for industrial engraving machine equipment. Note: 1. Please wear laser goggles during use, to avoid direct contact with the eyes and skin laser! 2. Please note that the laser module should work within an hour and a half. And then continue to work after cooling to ensure that the period of use.