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
Focusable Red DOT Laser 650nm 100MW Diode Laser Module for Ranging - China Laser Module, 100MW Red Laser Module | Made-in-China.com
488nm 80-100mw Sky Blue Dot Laser Diode Module With Cooling Fan TTL /5V PWM | Being Patient