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  1. lumengeek

    Nitecore D10 LED replacement

    Hi all, I am considering purchasing a Nitecore D10 (Q5 version) as I quite like the styling of this light. However, I will probably want to replace the emitter with a warm version. I have no problem with soldering on a new emitter, but I was wondering about the head itself - is it physically...
  2. lumengeek

    Hig pressure inside Fenix L2D?!

    Hi all, I was just doing a discharge duration test on my Fenix L2D (on high) with 2x2000mAh Uniross NiMh cells inside. The light was tailstanding, and everything was normal for the first ~1 hour, the body was slightly warm as you'd expect. Then I went downstairs for 10 mins, came back...
  3. lumengeek

    Recommend me a light!

    I've not had much luck in finding good quality, small incandescent lights except the 2AA mag. I guess what I'm ideally looking for is an incandescent version of the Fenix L2D, but obviously without the modes and the >100 lumens output... if such a thing exists! So to summarise - an output...
  4. lumengeek

    Cree XR-E Warm White in the UK?

    Hi all, I'm having extreme difficulty in finding anywhere where I can buy XR-E warm white LEDs mounted on stars/heatsinks and available to the UK. The only place I have found is Farnell, but they only seem to sell the chips only! I've ordered bits from DealExtreme before, but they don't seem to...
  5. lumengeek

    LED failure modes

    Hi all, I was speaking to a work colleague the other day about white LEDs and their rated life of so many thousand hours, but the question is what is the failure mode of the LED beyond it's rated lifetime? (assuming it is cooled properly and not overdriven). I can only assume that the phosphor...

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