PWM/TTL Blue Laser Engraving Module/Focusable 450nm 4W High Power Etcher Laser
$69.98
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TTL function depends on your engraving machine signal.Parameters:1) Wavelength: 445nm-450nm2) Output Power: 4000mW+3) Adjust the focus: Yes4)Working Voltage: 12V5) Power supply: 2A6)TTL connector cable attached.8)Cooling mode: Heatsink and Fan9)Material: Metal10)Lens: Glass11) Size：33mm*33mm*55mmPackage List：1 pcs laser module1 pcs google1 pcs power
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