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Building a Laser Module - Examples of How to Build Our Kits
Using Dummy Loads to Set the Laser Driver Current
Laser Diodes - General Characteristics
Laser Diode Modules for Cutting and Engraving - Laser CNC
Green (532nm) Laser Modules - 12mm Brass Case Type
Choosing Line Lasers - Safe Working Power
Refund / Cancellation Policy
Cable to connect USB power supply to a 5.5 x 2.1mm plug.
The polarity: Centre of 5.5 x 2.1mm plug is +ve (red cable) , shell is -ve (black cable).