Laser Module CNC Engraving Machine Accessories 1500-3000mW Blue Light 445nm Adjustable Focus 12x45mm Yellow Built-in Constant Current Driver 3.7-5V DC for DIY Engraving with Heat Sink Required Not for Continuous Use
CNC Laser Module 1500-3000mW Blue Light 445nm Adjustable Focus for Engraving Machine Accessories

This laser module provides a high-power blue light source for CNC engraving applications where focused energy delivery is essential. The 445nm wavelength offers visible beam visibility for easier alignment and setup on workpieces. With pulse power rated between 1500 and 3000mW, and actual continuous power approximately 60% of that figure, it delivers sufficient energy for cutting and marking tasks on suitable materials. The built-in adjustable constant current driver ensures steady current supply, reducing the risk of power fluctuations during operation. At just 12x45mm, this compact module fits into many DIY engraving machine heads. The yellow-coloured housing includes an adjustable focus mechanism for spot control.
Features and Construction

This laser module combines a high-power diode with an integrated driver board in a small form factor. Key construction details and practical specifications are outlined below.
Material and Build
The laser diode emits at 445nm blue light and is paired with a built-in constant current driver board. The driver is adjustable, allowing users to tune current delivery within the rated parameters. The module body measures 12x45mm, making it suitable for mounting in compact engraving heads. Voltage requirement is DC 3.7V to 5V with current draw of 2A or above. The unit is coloured yellow.
Size and Practical Fit
With dimensions of 12x45mm, this laser module is designed for integration into DIY CNC engraving machines and similar setups. The compact size allows installation in spaces where larger modules would not fit. The adjustable focus mechanism enables the user to set the spot size for different material thicknesses and engraving depths.
Uses and Placement

This laser module is intended for engraving and low-power cutting applications in hobbyist and workshop environments. Correct setup and safety measures are critical due to the high power output.
Event or Professional Use
In workshop or professional settings, this module can be used for marking and engraving on materials such as wood, plastic, and some coated metals. The visible blue beam assists in alignment and focusing before operation. The adjustable constant current driver allows fine-tuning of power delivery for consistent results across different materials.
Everyday Home Use
For hobbyists and DIY enthusiasts, this laser module can be integrated into home-built engraving machines or upgrades to existing units. Its compact size and straightforward voltage requirements make it suitable for projects where space is limited. Users must ensure adequate heat dissipation and never run the module continuously for long periods.
Benefits and Buying Value

This module offers a combination of power, adjustability, and compactness that makes it a practical upgrade for engraving machine builders. The key benefits are outlined below.
Reuse and Low Maintenance
The built-in constant current driver helps protect the laser diode from current spikes, contributing to longer operational life. The module requires minimal maintenance beyond keeping the lens clean and ensuring the heat dissipation system is functioning. Users should follow the safety and usage precautions provided to avoid damage from overheating.
Why Choose This Product
This laser module provides a high pulse power density in a small package suitable for DIY CNC engraving. The adjustable focus and constant current driver give users control over engraving depth and power consistency. At 1500-3000mW pulse power with 445nm blue light, it offers a visible beam and practical power for a range of engraving tasks. The module is intended for users who can install proper heat sinking and follow safety guidelines.
