New 80mW 450nm Blue Laser Diode PLT5450B 5.6mm TO-18 LD: Amazon.com: Industrial & Scientific
Amazon.com: 20pcs Red Dot Laser Diode, 5V 650nm 5mW Small Mini Laser Pointer Head Module, DIY Mini Laser Tube with Leads Head Outer Diameter 6mm : Industrial & Scientific
Amazon.com: Golden Cooling Heatsink Holder with Mount for 12mm Laser Diode Module(20mm×27mm×50mm) : Electronics