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  1. N

    my m140 at 1.8 amps

    After my first blue a-140 got bad using a direct drive with an lm317, even with capacitors and everything!, I decided to buy another blue from DTR, this time an M-140, with an x-drive included and the copper/al aixiz from DTR as well. Located in the Dominican Republic, with only a few years...
  2. N

    445 lasers power underwater

    hi, I'm new to the forum, I have a couple of days looking for the different lasers options, really cool site guys. I decided which laser I want for experiment a bit, but I was wondering if some of you have some experience using blue lasers underwater, I guess is the best spectrum to get the...


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