2000mW 445nm Blue Laser Module Kit with TTL Control and Adjustable Focus

This 2000mW 445nm blue laser module kit combines a 2W laser diode, an aluminum housing, an optical focusing lens, a cooling fan, and a constant-current driver board with TTL modulation support. The module operates from a 12V DC supply and draws 2A to 4A, delivering a blue beam at 445nm that is suitable for engraving and CNC cutting on wood, plastic, and certain metal surfaces. The adjustable focus lens allows the beam to be concentrated to a fine point for detailed work, while the aluminum body and active fan manage the heat generated by the high-power diode. TTL control enables rapid on/off switching for raster engraving and vector cutting workflows when connected to a CNC controller. This 12V blue laser kit is intended for DIY laser engravers, CNC router add-ons, and small-scale production setups. Operating temperature is specified from 10°C to 40°C, and the module should not be operated above 12V input because higher voltage can damage the driver and diode. The laser is highly sensitive to electrostatic discharge, so ESD protection is required during handling, and protective eyewear should be worn during operation. Transparent and white materials cannot be cut effectively with this wavelength. This focusable laser module offers a practical combination of optical power, modulation control, and thermal management for makers and light industrial users.