Klarus        
Results 1 to 6 of 6

Thread: Can Me Bulk driver be modded ?

  1. #1
    Flashaholic* Paul6ppca's Avatar
    Join Date
    Jun 2006
    Location
    RI
    Posts
    1,098

    Default Can Me Bulk driver be modded ?

    So hereís the story. I have a Mr. Bulk Chameleon and it has been acting up. I expect itís the driver.
    What it does, after sitting with the battery in it when you turn it on it will immediately turn off. If you disconnect the power/battery from the light for 30 seconds to a minute, the light will function normal for an hour or two. Then it reverts back to not functioning. Click on then usually at 3rd or 4th level it will shut down.

    So the question is, with the side switch which is built into the driver. Can the driver be updated? If so what are the options?
    I really like the light and itís UI.
    Is a replacement Driver available?
    I thought I had found one but I donít think it will work.(2nd picture)

    mr bulk b flex by Paul





    Here is the one I bought thinking it was a direct replacement

    Driver too large to fit in
    Chameleon
    . Any help is appreciated!
    Last edited by Paul6ppca; 02-10-2019 at 01:41 PM. Reason: pic added

  2. #2
    Flashaholic* Paul6ppca's Avatar
    Join Date
    Jun 2006
    Location
    RI
    Posts
    1,098

    Default Can Me Bulk driver be modded ?

    Could this be a result of poor grounding that Iíve read about? I have not had any flickering.
    Last edited by Paul6ppca; 02-10-2019 at 03:40 PM.

  3. #3

    Default Re: Can Me Bulk driver be modded ?

    To exclude anything obvious, have you tried different batteries?
    Have torch, will travel.

  4. #4
    Flashaholic* Paul6ppca's Avatar
    Join Date
    Jun 2006
    Location
    RI
    Posts
    1,098

    Default Re: Can Me Bulk driver be modded ?

    Yes I have. Most yield the same result. I am trying an IMR cell that seems to make the issue much less.
    Could it be the upgraded led is demanding to much from AW cell and other 123cell?
    I have it set on table 4 1000 ma max.
    And responded the same way on table 3 which is only 750 ma

  5. #5
    Flashaholic* Anglepoise's Avatar
    Join Date
    Nov 2004
    Location
    Pacific Northwest
    Posts
    1,553

    Default Re: Can Me Bulk driver be modded ?

    You might give George a call.

    http://www.taskled.com/

    Super guy. He designed and built all the drivers that Bulk used. I agree with the guys above. Grounding is sometimes a problem.
    David............................................." Some Homemade Creations"

  6. #6

    Default Re: Can Me Bulk driver be modded ?

    the early chameleons had a spring ring to hold the driver in, and create a ground.... I've replaced them before with a single wire type keyring, bent to fit....


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •