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  1. M

    LM317 to drive 3W HPLeds?

    Hey ppl, so thanks to this place I built my first 425mw red laser and have since had much fun with it. My next project is going to be a 1w blu diode in a mag light... My current question is, can I build a couple LM317 drivers to power 3W red HP leds? I'm building a new hydroponic system and...
  2. M

    SMD resistors ?

    Hello, I was wondering if I run two 2.2Ohm resistors in parallel would that give me 4.4? Or would I have to run them in series?
  3. M

    Why dosn't my laser burn?

    Hello all! I'm new here and this is my first post. Anyway here are my specs, LPC815 diode running on a DDL driver with aixiz module. My resistors are 10ohm running @ 125ma. I'm powering it off 6v of AA'a. It is bright and the beam can be seen in the dark but no heat! I think my resistors are...


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