5500mW 450nm Blue Laser Module with TTL Control and Aluminum Cooling Body

This 5500mW blue laser module combines a 5.5W laser diode with a 450nm wavelength output, an adjustable optical lens, and an aluminum housing with active fan cooling. The module operates from a 12V DC supply and accepts TTL or PWM signals for power modulation, allowing it to be integrated into CNC routers, laser engravers, and DIY cutting machines. The focusable lens lets users adjust the beam to a fine point for precise engraving, while the aluminum body and fan work together to dissipate the heat generated by the high-power diode. This 450nm laser head is intended for engraving and cutting materials such as wood, bamboo, paper, leather, felt, fabric, plastic, and foam. It should not be used on transparent, white, reflective, or metallic surfaces where the beam cannot be absorbed effectively. The module’s TTL input accepts a 0–5V signal, enabling rapid on/off switching for raster engraving and vector cutting workflows. Operating temperature is specified from 10°C to 40°C, and the cooling system is designed for continuous use within this range. Because high-power laser diodes are sensitive to electrostatic discharge and thermal stress, proper grounding and a stable current-limited power supply are essential. This 5.5W laser engraving module offers a practical combination of optical power, modulation control, and thermal management for makers and small-scale production setups.