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Thread: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

  1. #1
    Flashaholic msxtr's Avatar
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    Lightbulb Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Hi to all.

    Well I first bought by error a seoul T-bin, but at the end I decide upgrading another time, but this time with a seoul U-bin. You could see beamshot of both versions.

    Begin unscrew the four torx of the light with a torx key of T6 how this



    Now to take out the back cap and we see this



    Now to take out the heatsink with careful, this go hook with a littles taps how can you see on the before photo, first begin with the bottom caps, once out, see this



    already could see the luxeon III original, now we have to take out the circuit, this go to pressure, stretch without fear and we get this



    Another view



    The seoul p4 insert perfectly into the luxeon III optic



    View of original luxeon III and seoul p4



    Another view of both leds



    View of circuit with the led and the front cover with optic



    Dissolder the luxeon III now can see the wires without the led



    Now solder the seoul p4 to wires, warning!!!!!! look, the red wire go to + of led and black wire (brown) go to - of led!!!!!!!!!



    Now put it the seoul p4 into the hole of the optic and place the wires how was on the first photo, for can put the back cover correctly.

    Already mounted, work so, brigh with 3 "click" (saver power) the light are to aprox 1 meter from the wall,

    with T-bin



    One clik with U-bin



    With 2 clicks (middle power)

    T-bin



    With U-bin




    With 1 clicks (maximum power)

    T-Bin




    U-bin



    And the end, with the ultra power mode, this function only works during 20 seconds

    T-bin




    U-bin




    And here the headlamp in my helmet





    Detail of holder



    I hope that you understand my explanations


    Greetings - Saludos

    msxtr

  2. #2
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Great mod !

    I did a similar mod a while ago too.
    The color rendering is whiter compared to the old Lux with less color shifts
    and the center spot is not square anymore.

    Throw is also massive, since the optic has almost no spill (where a reflector has).

    BTW, did you compare runtime ?

  3. #3
    Flashaholic msxtr's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Quote Originally Posted by bombelman View Post
    Great mod !

    I did a similar mod a while ago too.
    The color rendering is whiter compared to the old Lux with less color shifts
    and the center spot is not square anymore.

    Throw is also massive, since the optic has almost no spill (where a reflector has).

    BTW, did you compare runtime ?
    Thanks!!!!!!

    I too don't have could compare the runtime, the mod I do it today, but I think will are similar runtime.

    Greetings - Saludos

    msxtr

  4. #4
    Flashaholic* Gaffle's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Ok, so the Myo is a DD light, so the circuit still only allows so much juice to the emitter right? I guess since the circuitry did not change the amount of power going to the emitter is still the same. Runtime would be exactly the same with the Seoul compared to the Luxeon, right?

    Right?
    Right?
    Right?

    "When Armageddon comes, it would be good to be an Olympic athlete, because running real fast and jumping over stuff could come in handy." -Jack Handey

  5. #5
    Flashaholic* Long John's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Quote Originally Posted by Gaffle View Post
    Runtime would be exactly the same with the Seoul compared to the Luxeon, right?
    That depends on the vf of the Led's. right?

    Best regards

    ____
    Tom
    It's cheaper to get a high quality light than spending money for many cheap lights.

  6. #6
    Flashaholic* Nereus's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Thanks for the tutorial!

    -N
    My mods. Please post questions about my mods to the corresponding thread: like that all CPFers can get the info - thanks!

  7. #7

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    i just found this forum and owns a MYO XP.... the mod that was done looks promising.

    where can i get these SSC P4? what is the difference btw U BIN and T BIN?

    thanks...

  8. #8
    Flashaholic msxtr's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Quote Originally Posted by yycho2 View Post
    i just found this forum and owns a MYO XP.... the mod that was done looks promising.

    where can i get these SSC P4? what is the difference btw U BIN and T BIN?

    thanks...
    Hi, Sorry, I don't had seen your question untill now...

    The difference between T-bin and U-bin version are that the U-bin version give more light with the same power. You can see the images to compare both versions.

    Greetings - Saludos

    msxtr

  9. #9

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Quote Originally Posted by yycho2 View Post
    i just found this forum and owns a MYO XP.... the mod that was done looks promising.

    where can i get these SSC P4? what is the difference btw U BIN and T BIN?

    thanks...
    http://www.dealextreme.com/details.dx/sku.1445

  10. #10

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    i've managed to upgrade my MYO XP to Seoul P4....

    Good news is:-
    much brighter than before...

    Bad news:-
    after i switch on the LED on high (not Blast mode), the battery indicator light will blink after 30 sec, i've tried on a few completely new ENERGIZER alkaline, still same...

    And i notice the heat sink is pretty hot... i've actually mod it using a PC heat sink which is chunkier and with fins

    Question:-
    1) Wat can i do to prolong the battery life?
    2) wat input voltage can the MYO XP circuitry accept?
    3) now is 3x AA, can i mod it to accept 4x AA?

  11. #11
    Flashaholic Tidra's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    I did it yesterday, realy easy mod and good final result.

    Thank you for informations.

    Iztok

  12. #12
    Flashaholic* hopkins's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Hi yycho2 - The blinking battery light is normal. My MYO XP has always blinked
    The color changes to red when the batteries gets low but still blinks.
    Nothing to worry about.

  13. #13
    Unenlightened
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Great work! I was just wondering, what type of circuit is on the Petzl lamp?

    Enrique
    Saludos

  14. #14
    Flashaholic jezzyp's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Finally did this mod so thanks for the excellent pictures - I would not have done it otherwise did not want to wreck my light.
    Does the soeul get any hotter than the old lux? I put some more thermal compound on just in case but as I use think for hiking I don't want it to go poof.
    I'm leaving it in all night as a test anyway.
    We call them torches here in England...

  15. #15
    Flashaholic* hopkins's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Great photos Msxtr!
    I will do this to mine also.
    Does anyone think the heatsink needs to be mod'd to dump more heat outside?
    Something like the PT Apex does? Could be difficult. Maybe someone has
    a simple, elegant idea!
    I enlarged the slot on the bottom to let more air flow up over the heatsink
    inside but would like more metal exposed.

  16. #16
    Flashaholic Marko's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Nice work! I think I have to upgrade my MYO XP too.

  17. #17
    Flashaholic* Changchung's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Buen proyecto amigo, sabras si se obtiene un igual o mejor resultado con Leds Luxeon K2 o con CREE???
    Last edited by Changchung; 02-01-2008 at 03:47 PM.
    Zebralight Spark Princeton Inova Petzl Maglite Bushnell 4 XM-L MagMod and a lot of Cree XM-L Lights Nitecore i4 Intellicharger Intl-outdoor 3400 Panasonic 3100 Bare and protected Samsung 3000 Sanyo 2600
    Please, respect the planet, dont kill animals...

  18. #18
    Flashaholic Marko's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    I don't know how long it has been available, but there seems to be new version of MYO XP, found info about it from Petzl Homepage, here: http://en.petzl.com/petzl/LampesProduits?Produit=554

    -150 lumens (Boost mode), 85 lumens (Maximum level)
    -New color : dark grey, black headband with grey graphics
    -New LED : 3 times brighter

    Anybody know more about that "New LED"? Is it Seoul P4?

    edit: Here is good preview of the new version by Szemhazai: http://www.candlepowerforums.com/vb/...d.php?t=188749
    Last edited by Marko; 02-10-2008 at 12:42 AM.

  19. #19

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Great upgrade
    Just one question: do you know (or anyone else), where could I get a different optic with more spill? Or is it a Petzl specific optic and you can not change it?

  20. #20
    Flashaholic* Changchung's Avatar
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Done... Thanks for your post...
    Zebralight Spark Princeton Inova Petzl Maglite Bushnell 4 XM-L MagMod and a lot of Cree XM-L Lights Nitecore i4 Intellicharger Intl-outdoor 3400 Panasonic 3100 Bare and protected Samsung 3000 Sanyo 2600
    Please, respect the planet, dont kill animals...

  21. #21
    Unenlightened
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Marko,
    The new myo xp has only been available since March 14th, 2008 and you are correct about the settings. I just received the high power XP and it is a way nicer unit.
    Not sure if you have heard about it or not, but Petzl has a new headlamp coming out on July 1st; the Ultra http://en.petzl.com/ultra/ultra-concept.html, it has 6 LED's and is a little smaller than the old Petzl DUO but packs 350 lumens of power (about the same light output as the HID headlamp systems). I tested a prototype a few weeks ago and it performs really well. the downside is the price...expect to pay $500 USD for it!

  22. #22

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    I done my upgrade, a lot brighter. one thing i noticed is the new led doesnt shine as far as the old led. Almost looks like the old one are more spotty. The new one are lightning up a wider area which are great for working close around you but not for more in the distance.

  23. #23
    Enlightened
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    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    I notice that one early replier says there's not much spill, more throw. Then a more recent replier says it doesn't throw as far with the Cree.

    ??

    Anyone know what the reality might be? Or is it all in our heads! : ) (On our heads?)

    --JP

  24. #24
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    Thinking Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Could an SSC P7 (http://www.dealextreme.com/details.dx/sku.12721) be used for this mod.

  25. #25

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Quote Originally Posted by JeffOYB View Post
    I notice that one early replier says there's not much spill, more throw. Then a more recent replier says it doesn't throw as far with the Cree.

    ??

    Anyone know what the reality might be? Or is it all in our heads! : ) (On our heads?)

    --JP
    I just upgraded my old Myo XP, and I think it definitely is more floody.

  26. #26

    Default Re: Petzl Myo XP mod Luxeon III to Seoul P4 a lot of photos!!!!!!

    Quote Originally Posted by Rip Van View Post
    Could an SSC P7 (http://www.dealextreme.com/details.dx/sku.12721) be used for this mod.
    I would like to know the same thing.

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