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  1. dchao

    Surefire K2 KROMA & KROMA Milspec

    Aepoc, Why don't you try the new Ultra Fire Button-Top unprotected 17670. At 3.7V, there is enough voltage to power the Luxeon III without suffering any reduction in its output (compare to the original 6V from the 2 x 3V 123's). The 17670 is rated at 1800mAh , and will keep your K2 on high...
  2. dchao

    Surefire K2 KROMA & KROMA Milspec

    You are wasting battery power by using two 3.7v batteries (total=7.4) One cell, like the 17670, is sufficient to power the Kroma.
  3. dchao

    Surefire K2 KROMA & KROMA Milspec

    I am sure the LED's won't even turn on when the voltage drops lower than 3.0V. Whereas the Li-Ion's over discharge protection voltage come on at a much lower 2.40V. Also lots of people run 18650's with SF U2's, and have no problem so far. So I think it's OK to run unprotected with Kroma as well.
  4. dchao

    Surefire K2 KROMA & KROMA Milspec

    LED61: Unprotected 17670 will fit inside the K2 perfectly, so the tailcap spring can maintain the battery's positive contact all the time.
  5. dchao

    Wolf-Eyes 9DX Raider vs. Streamlight TL-3. WITH LOTSA PICS!!

    I'm running on 2 x PILA 300P here. No spacer needed.
  6. dchao

    Surefire K2 KROMA & KROMA Milspec

    eBay :eek:
  7. dchao

    Wolf-Eyes 9DX Raider vs. Streamlight TL-3. WITH LOTSA PICS!!

    Thanks for the excellent review! I've noticed that too. One observation from the smaller 6M. 6M with the Explorer body has a much tighter fit between the body and the turbo bezel assembly, and when screwing the bezel on, you can feel the resistance from the O-Ring.

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