650nm 660nm Adjusted Red Laser Line Dot Cross Laser Diode Module 3V-5.5V 100mW Laser Dot/Line/Cross Module Focusable 13mmx42mm with US Power Adapter and Heatsink: Amazon.com: Industrial & Scientific
5.5W 450nm Blue Laser Module Laser Engraving and Cutting TTL Module 5500mw for Stainless Steel 3mm Wood - Free Shipping - ThanksBuyer