Industrial Focusable High Power 2500mW/2.5W 450nm Blue Laser Module 2.54mm 2 Pins Plug DC12V CNC Engraver Cutter Laser Parts From Bookgoods, $164.51 | DHgate.Com
2500mW 445nm Laser Module Laser Cutter Head CNC Laser Cutting Engraver Part 2.5W Focusing TTL PWM Laser for CNC Router - BeamQus