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  1. K

    ebay laser

    Is this a good laser? if i use a heat dissipator on the module do you think it could last many hours turned on? 3 pcs 5mW Class IIIA 532nm Green laser module tube DIY - eBay (item 320363904875 end time Feb-18-10 07:55:01 PST) Thank you PS: actually i still can´t understand the difference...
  2. K

    Spectral Reflections?

    Hi all, i have a question. If i have a green laser pointing from the top to a glass full of water, do these reflections in the water are dangerous with a 10mw laser? Also, if anyone can clarify me the concept of spectral reflection it will be great.
  3. K

    Newbie question...

    Hello, this is my first post and this forum is great! i´m pretty new to lasers and i would like to know something, i already broke 3 <5mw laser pointers just testing... I connected the modules to a 3v 250 mA dc power supply, but they don´t seem to last too much, they get overheated. So i was...


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