635nm 638nm Laser Module
635nm, 638nm, 637nm, orange red laser module
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$24.73Out of stock
635nm 20mw Red Dot Laser Module DC 3V -
$17.9816*68 638nm Orange Red Cross Hair Laser Module Sharp Laser Diode In
comparing with 650nm at the same output, the 638nm is more brighter
as single mode laser diode is, the line effect is clear and stable.
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$17.9816*68 638nm Orange Red Line Laser Module
