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  1. Lighty

    What LED is close to the spectrum of a Xenon Halogen Bulb?

    Can you buy a flashlight with the Nichia high CRI LED in it and where can I buy one?
  2. Lighty

    What LED is close to the spectrum of a Xenon Halogen Bulb?

    I currently use a flashlight that has a Xenon Halogen bulb for inspecting at work. I have tried LED flashlights just don't let me see the same feature as I can see with the Xenon bulb. What LED is close to the spectrum of a Xenon Halogen bulb? I am looking for a flashlight around >400 lumens.
  3. Lighty

    Anyone used the K2 Energy RCR123 batteries or charger?

    Anyone gone with this system or the batteries? http://store.peakbattery.com/lfp123a...r-lithium.html http://store.peakbattery.com/charger...3a-batter.html They seem safer than regular Lithium Ion. http://en.wikipedia.org/wiki/Lithium...sphate_battery
  4. Lighty

    What RCR123 and Charger are you currently using?

    re-post ..sorry
  5. Lighty

    What RCR123 and Charger are you currently using?

    I am currently looking for my first set of RCR123's and charger. I searched the forum and didn't find much. It seems like rechargeable are not that popular. Anyone gone with this system or the batteries? http://store.peakbattery.com/lfp123a-32-volt-600-mahr-lithium.html...
  6. Lighty

    Helium Neon laser, what's so special?

    Most likely if it has been sitting for that long it will not even turn on or if it does will have a reduced lifetime. HeNe's were the work horses before laser diodes were developed.
  7. Lighty

    I just realized something really horrible

    Rule Number 1 Never look directly into a laser. Read this book while you still can see...
  8. Lighty

    Questions on green laser IR danger

    What is the danger to your eyesight from the IR from an unfiltered green laser? You talking intrabeam (directly in eye) or viewing diffuse reflections from a wall? Isn't IR just E-M radiation with a longer wavelength than red? Yes, it is outside the visible spectrum. Near IR is about 700nm to...

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