Recent content by Jalben

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  1. J

    XKCD: flashlights

    Re: Today's XKCD Setting the whole forest on fire at the same time sounds like a challenge. I've seen lights burn wood, but I don't think I've seen anything at that kind of range.
  2. J

    I'm thinking in make a homemade flashlight using an old flashlight case like this one

    Welcome to CPF! Yes, this LED eats more power. The 5mm LEDs you had each took ~20mA, so the 9 of them together used ~180mA. This LED, from what I read on the ebay link you provided uses 350mA at stock current. However these are really the stock ratings for the LEDs, and not really how much...
  3. J

    Freebies Giveaway

    Thanks Vinh! I'm in draw three! #8675 One of my local museums has a few nautical things, like parts of the Titanic and this really nice Fresnel lens from a light house. I keep trying to think of a way to mount it on a flashlight....
  4. J

    The Gravity Light

    Super cool. Like a grandfather clock light.
  5. J

    Does any one do custom shaped LED Emitters?

    Using aspheric lens you get a reasonably clear emitter shaped beam, so I had to ask, has anyone customized the shape of the emitter to get some interesting beam shapes?
  6. J

    What's a good Diving light?

    I agree, I think I have some neoprene can cozzies around here that I can make into a wrist mount for what ever I end up getting. I think I need to find out what the specs are on his current old HID light is so I know what I need to measure it up against. But I definitely want something in the...
  7. J

    What's a good Diving light?

    My father does his diving mostly in salt water here around Newfoundland, mostly for scallops so in the 30-40 ft depth range. The water isn't usually isn't too murky unless in a cove where there's a fresh water stream outlet. Since we're on the bottom most of the time there's a fair bit of silt...
  8. J

    What's a good Diving light?

    Hey guys, First time poster, came across these forums when I decided to get my father a diving flashlight for Christmas, and I have to say you guys have blown my mind. I've spent the last week look at flashlights in a whole new light. I've always loved flashlights, but never dreamed that such...
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