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Thread: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

  1. #1
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    Default Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    If you've read selfbuilt's XT11 review
    http://www.candlepowerforums.com/vb/...EAMSHOTS-VIDEO

    The XT11 is hitting ~700 lumes on 2 CR123A's vs the 550-600 on a single 18650.

    Can anyone try this with the XT2C. I don't have CR123A's

    Also what's the difference between RCR's and CR123A's?
    Last edited by ledmitter; 03-11-2012 at 09:24 AM.

  2. #2
    Flashaholic* madecov's Avatar
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    I have the light but have only used 18650's
    I have a bunch of 123 primaries but have not tried it in my Klarus lights
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by madecov View Post
    I have the light but have only used 18650's
    I have a bunch of 123 primaries but have not tried it in my Klarus lights
    I'm the opposite, I have the XT2C but have only used CR123 primaries, don't have any 18650's.
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    I've just ordered an XT2C and have both CR123 and 18650 batteries. If I have time I will get some beam shots with my DSLR. I don't have any light-meters...

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    Flashaholic* kj2's Avatar
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Will the XT2C take, the flat-top (like Panasonic, Sanyo batteries) 18650?
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    I should be getting my XT2C sometime next week and I only have a flat-top AW 18650 so far: if you don't get an answer before then I'll let you know how it works.

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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by Labrador72 View Post
    I should be getting my XT2C sometime next week and I only have a flat-top AW 18650 so far: if you don't get an answer before then I'll let you know how it works.
    Thanks
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  8. #8
    Flashaholic* madecov's Avatar
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    My XT-2C runs perfectly fine on AW 3100 mah flat top cells.
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  9. #9
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by ledmitter View Post
    If you've read selfbuilt's XT11 review
    http://www.candlepowerforums.com/vb/...EAMSHOTS-VIDEO

    The XT11 is hitting ~700 lumes on 2 CR123A's vs the 550-600 on a single 18650.

    Can anyone try this with the XT2C. I don't have CR123A's

    Also what's the difference between RCR's and CR123A's?
    Found out the XT2C is regulated so the extra voltage from a 2X config won't mean a difference. Stick with the 1X18650.

  10. #10
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    So does this mean the XT11 is not regulated?
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  11. #11
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by loquutis79 View Post
    So does this mean the XT11 is not regulated?
    It's regulated but has a different output ceiling for the 2XRCR configuration, whereas the XT2C does not.

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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by ledmitter View Post
    Found out the XT2C is regulated so the extra voltage from a 2X config won't mean a difference. Stick with the 1X18650.
    Doesn't the XT2C use PWM? I've been very curious about this light and I'm thinking of ordering one.

    Do you guys hear any inductor whine or notice any PWM strobe? Thanks
    My flashlight collection HERE

  13. #13
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Yes.

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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by jhc37013 View Post
    Doesn't the XT2C use PWM? I've been very curious about this light and I'm thinking of ordering one.

    Do you guys hear any inductor whine or notice any PWM strobe? Thanks
    I don't have the XT2C yet but I do get the "whine" on the XT2A and XT1A. I only notice it if I place them close to the ear though. I didn't notice the strobe effect but I'll drop them into the sink later to see if I notice it when they are submerged.
    The XT1A also starts flashing when the battery is running down but I have no idea if this is an intended warning signal or if it is resulting from a combination of PWM and low battery.

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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by jhc37013 View Post
    Doesn't the XT2C use PWM? I've been very curious about this light and I'm thinking of ordering one.

    Do you guys hear any inductor whine or notice any PWM strobe? Thanks
    I hear some noise (whine/low sound beep) on High, on medium very hard to hear and on low- I can't hear it.
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  16. #16
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    There is a whine for sure but hey, now I can enjoy light and sound!
    But really, it's rather soft. Not enough to make me dislike the product.
    I find the lack of a pocket clip much more annoying but I still bought it.
    Maybe when Going Gear get the clips in I can get one. If they are available as a single item order
    Fenix TK35/TK21 U2/PD32/LD12/E01/ Romisen RC-T602/ Klarus XT2C/ EagleTac D25LC2 Clicky, Thrunite TN31. , Olight s10, Eagletac D25LC2 factory mod XP-G2 with 2amp driver. Eagletac D25C Ti XM-L U2, D25C ti XP-G2

  17. #17
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Im not sure about the xt2c being regulated or not but I notice for sure it being brighter with 3 cr123s vs my Tenergy 18650, I only run primaries in it because of this reason, on my fenix tk15 on the other hand they seem to perform about the same

  18. #18
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by loquutis79 View Post
    I find the lack of a pocket clip much more annoying but I still bought it.
    Maybe when Going Gear get the clips in I can get one. If they are available as a single item order
    I would hope that Klarus make the clips available for purchase as an individual item, most other manufacturers do!

  19. #19

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    I'll have to check this out on mine, I hope it does give a brighter beam with two cr123 primaries.


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  20. #20
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Tried primary 123's but found no difference. I am pretty sure it is regulated.
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  21. #21

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    Oh well... Guess you can't have everything . I still love this light, nonetheless. I think I even like it better than the xt11.


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  22. #22
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    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    the XT2C are now shipped from going gear with clips.

  23. #23

    Default Re: Klarus XT2C peeps, notice an output boost using two CR123a's vs the single 18650?

    Quote Originally Posted by iowatollah View Post
    the XT2C are now shipped from going gear with clips.

    Just got mine this week, and it came with a clip. I like the light more than I thought I would. Recently bought an XT11 as a possible EDC light, but this XT2C is going to be my new EDC instead.

    It does have more flood than the XT11 and it seems to be the perfect size to fit in your hand or a jacket pocket, etc.

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