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Recent content by abwx

  1. A

    Looking for recommendations

    I have a device which the vendor describes as "Laser 301 5mw 405nm 18650 Zoomable Purple-Violet Light Laser Pointer Presentation Pen." I paid less than $10 for it, providing my own 18650. If I unscrew the tip a bit ("zoom"), the beam double-cones with the crossover a few inches in front of the...
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