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    445nm M140 Diode In Copper Module With Leads & Three Element Glass Lens

    Hello, I am brand new to laser building, and I am following the https://www.youtube.com/watch?v=BYuvHFiyfoQ&list=PLrTi8xcqGSIGOnDm1EjALIbeWfxs9RB58&index=1 Video on trying to make the laser. I have bought the housing, but I was wondering what goggles I should get for the diode that is mentioned...