445nm 450nm 4000mW 4W Blue Dot Laser Module 12V for DIY CNC Cutter Engraving Engraver Specifications: 1.Wavelength:445nm~450nm (Blue laser module) 2.Output Power:4000mW /4W 3.Adjust the focus:Yes(By fingers),3A; 6.Cooling mode:Heatsink and Fan...

$297.00
 
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