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Thread: MBI HF-R Mods?

  1. #1

    Default MBI HF-R Mods?

    Hi all, I hope this is posted in the correct place, and that "solicitations" of this nature are allowed. I have an MBI HF-R Flashlight I am interested in having modified. Ideally, I would request 3 things:

    1) Swap Emitter for a Nichia 219 (currently has XML)
    2) Install custom driver. I have the 3 mode version and I just feel the 600 lumen high is too much. It's impressive but I'd prefer more runtime. I know the 219 will produce lower lumens anyway. I'm not sure what's really possible here but I'd love to discuss it.
    3) New tritium tubes.

    Can anyone recommend me a modder who might be interested in this project?

  2. #2

    Default Re: MBI HF-R Mods?

    I think I remember other people swapping emitters, but I'm not sure there's room for a driver. The HF series was direct drive, with modes being determined by resistors in the rotary tailswitch.

  3. #3

    Default Re: MBI HF-R Mods?

    Quote Originally Posted by mcbrat View Post
    I think I remember other people swapping emitters, but I'm not sure there's room for a driver. The HF series was direct drive, with modes being determined by resistors in the rotary tailswitch.
    Thank you for the information, this is good to know, not sure if I made clear that I'm definitely a novice with this stuff. Would there be any other way to "throttle down" the output on high to squeeze out more runtime/less heat?

  4. #4

    Default Re: MBI HF-R Mods?

    Where are you located?

    The HF-R has resistors in the rotary tail switch, they can be changed to different values altering the output.
    There is no "driver" as such, just a contact PCB.





    The emitter is fairly easy to swap.


    I have extensively modified mine


    I swapped some resistors around so:
    Momentary mode – 760lm
    92A – 887Ω to 1Ω – 240lm – 20mins
    201 – 200Ω to 2Ω – 150lm – 40mins
    150 – 15 Ω to same – 30lm – 220mins
    5R1 – 5.1Ω to 200Ω – 10lm
    0 – 0Ω to 887Ω – 1lm
    Last edited by CRX_; 07-16-2018 at 06:23 AM.

  5. #5

    Default Re: MBI HF-R Mods?

    Quote Originally Posted by CRX_ View Post
    Where are you located?

    The HF-R has resistors in the rotary tail switch, they can be changed to different values altering the output.
    There is no "driver" as such, just a contact PCB.





    The emitter is fairly easy to swap.


    I have extensively modified mine


    I swapped some resistors around so:
    Momentary mode – 760lm
    92A – 887Ω to 1Ω – 240lm – 20mins
    201 – 200Ω to 2Ω – 150lm – 40mins
    150 – 15 Ω to same – 30lm – 220mins
    5R1 – 5.1Ω to 200Ω – 10lm
    0 – 0Ω to 887Ω – 1lm
    That is some truly mind-blowing work right there. I am located in the US, in Maryland. I have the 3 mode HF-R with momentary, not sure what options are possible with that. In a perfect world maybe 1-30-150 with max momentary. If you would be inclined to modify another I'd love to talk with you about that!

  6. #6

    Default Re: MBI HF-R Mods?

    Hopefully someone closer to you can help you out with this or you get into moddin' lights
    Last edited by CRX_; 07-16-2018 at 01:38 PM.

  7. #7

    Default Re: MBI HF-R Mods?

    CRX has kindly offered to mod my light, but given that I am in the US and he is in the UK, I am still searching for others here in the states.

  8. #8
    Moderator
    archimedes's Avatar
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    Default Re: MBI HF-R Mods?

    MBI HF (and related models) are very tiny, and appear to be at least of "moderate-plus" challenge to mod.

    You may wish to check with Vinh to see if it would be something he might be willing to attempt ?

    That was a kind offer @CRX_ . You seem to be new to CPF ...

    Just saw your linked photos, that looks to be some very impressive work you've done. I hope you will continue to participate here, and would be very interested in any "build threads" you may want to add ....
    Last edited by archimedes; 07-16-2018 at 06:03 PM.
    ... is the archimedes peak

  9. #9

    Default Re: MBI HF-R Mods?

    Thanks.

  10. #10
    *Flashaholic* easilyled's Avatar
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    Default Re: MBI HF-R Mods?

    Quote Originally Posted by archimedes View Post
    MBI HF (and related models) are very tiny, and appear to be at least of "moderate-plus" challenge to mod.

    You may wish to check with Vinh to see if it would be something he might be willing to attempt ?

    That was a kind offer @CRX_ . You seem to be new to CPF ...

    Just saw your linked photos, that looks to be some very impressive work you've done. I hope you will continue to participate here, and would be very interested in any "build threads" you may want to add ....
    CRX was recommended to me by a friend on CPF from the UK and I requested him to mod 2 of my brass peaks (Logan & Rainier) into multi-level lights with current emitters and versatile UIs. He did an amazing job on them.
    We are all flotsam and jetsam being carried by a relentless tide towards our ultimate fate!

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