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  1. stephenkall

    Repairing an old pointer

    Hello, guys! I just found a generic old pointer which a relative purchased few years ago. It's a 200mW 405nm Class IIIb blue laser pointer, that uses 2xCR2 3V batteries. Thing is that this laser was working well by the time it was purchased, but not so much right now... What happens? Light is...


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