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Adjustable 450nm 1.6W 1600MW Blue Laser Module for DIY Engraving

Adjustable 450nm 1.6W 1600MW Blue Laser Module for DIY Engraving
Specification:Wavelength: 450nmOutput Power(CW): 1600mwSize: 16*59.5mm Adjustable 450nm 1.6W 1600MW Blue Laser Module...