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ultrafire c3 extension

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ultrafire c3 extension Customers Reviews

  • Works Great!

    posted by demented_demon

    Good ConstructionI think the Flashlight needs more lubrication for smooth removal of the parts but it's just me, Can always get some Heatsink grease to the job from DX, It's very Bright, Probably brighter than my 12 Volt Dolphin Torch.
    Low and Medium Modes Kind of Act as a Strobe Light when you Shine it on Fast Rotating/Moving Objects (i.e Case Fans), also noticed a brightness fluctuation when on low or medium brightness (maybe due to voltage regulator?).
    Good Value for the type of LED used and Able to be used with 1 or 2 AA batteries.
  • Good edc light

    posted by startrekmichi

    - bright light with nice throw/spill pattern
    - versatile due to extension tube (works with 1 or 2 AAs)
    - relatively easy to disassemble (see other thoughts)
    - build quality: the finish and threads are good
    - runtime: a little over one hour with two LSD-AAs (rated 2200mAh)
    - can tailstand, although the strap might get in the way
    - no blinking modes
    - I recommend to take a dremel-tool and flatten the area on the heatsink where the LED is mounted. Then remount the emitter either using thermal glue or you could put a small ring of plastic or an o-ring on the emitter itself in a way that the reflector will press the LED onto the heatsink. This should prolong your LED's life.
    - While you're at it, check all soldering points.
    - If you can't get the driver/LED-assembly out of the head, take a small drill (I used 1mm) and make two holes in the outer (!!!) ring of copper. Go about one or two mm deep, not more. Then you can use needle-nose pliers to screw the part out. Be sure not to hit the inner ring of copper (driver) or go too far outside since you could hit the threads.
    - Hint: If you screw the switch assembly too hard into the tailcap, you might get contact problems.
    I think with a little tweaking this is a perfect light for everyday carry or backup use. And even without that it is still a good, small, flexible and very bright light. If you then consider the value for money, you simply have to buy it.
  • First impressions - useful and powerful

    posted by PM_CZ

    - This flashlight HAS the mode memory (unlike C3/P4/5-mode model)
    - The mode can be switched by slightly depressing the clicky for a split second, without visibly switching off the light
    - Sanyo NiMH 2700 Supperlattice AAs (14mm) fit without a problem, I measured that the flashlight lasted 5.5h on two of them (after running on high for 5 minutes).
    - The driver circuit keeps the light quite bright and when the brightness drops, it will turn off in a matter of minutes
    - I received the flashlight this Monday since the post office forgot to inform me that they had it laying there since last week.
    -Don't use two 14500 in this flashlight, it is outside of the specs and some people report that they killed the C3/P4 with them
    - Came switched to SOS mode, took some time to work out the mode switching since no manual is included.
    - I did not measure the driver circuit output, but the input values (Ain, Vin) are following:
    1AA NiMH (1.25V when measured)
    1.8A on HIGH
    0.77A on MEDIUM
    0.22A on LOW
    2AAs NiMH (2.6V when measured)
    2.65A on HIGH
    0.35A on MEDIUM
    0.12A on LOW
    I am not a flashoholic so I can't compare this flashlight with other, but it looks great and the performance is great too, I only hope that the emitter will last.
  • "I decree this a great light"

    posted by llasher

    Good build qualityVery nice designClean light Takes cheap AAs
    My first Cree but might get some more.
    Bought this due to reputation and reviews: it was a "safe" purchase. Very satisfied!
  • Bright Flashlight.

    posted by ultrazoom

    • High mode is quite bright.
    • Flexibility of using 1 or 2 AAs. Even with 1 AA, it seems only slightly dimmer than with 2 AAs when at High.
    • Always turns on with Mid (not last used mode), which is fine for me. Tapping the clicky lightly goes to the next mode, so not a fuss for me since this can be performed quickly and easily.
    • Some cleaning and re-lubricating might be necessary.
    • I have yet to do any run-time test, so I will take what most reviews said about it.
    At this price, I am pretty satisfied with its performance and the flexibility.

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