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Thread: Need new light för my Green Force .. but cant find ! HELP

  1. #1

    Christo Pull Hair Need new light för my Green Force .. but cant find ! HELP

    My upgraded Green Force Tristar has now been broken and need to find a similar in the same


    As you see the picture so everyone sits on the same card.


    Tried to find but do not do it.


    Very grateful for the help
    to find a similar product

    The lamp is 21 watts so no less lights than there is about 39 mm in diameter


  2. #2
    Flashaholic* lucca brassi's Avatar
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    Default Re: Need new light för my Green Force .. but cant find ! HELP

    Try to contact GF service.

    With 21/7=3W you have some old leds on board ? 3 drivers / 7 leds any modes ?

    There are some PCBs on market that size but probably not on fit your leds position

    https://www.led-tech.de/de/LED-Modul...8_242_245.html
    https://www.led-tech.de/de/LED-Modul...3_242_245.html

    https://www.led-tech.de/de/High-Powe...7_106_109.html



    Next option is (depends on board failure ) is to copy or made new PCB that size ( try to take out pcb and scan it ( 1:1) with high resolution - both sides )

    PS I think that is burn-out some kind of protection diode before capacitor ( I don't know what upgrade you have made , but maybe it has designed for lower power also drivers around )
    Last edited by lucca brassi; 05-02-2017 at 01:38 AM.

  3. #3
    Flashaholic
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    Default Re: Need new light för my Green Force .. but cant find ! HELP

    Try contacting Cutter maybe they have some old stock that is not on their website and you can buy exactly the same board.

    Otherwise check if there is enough space to put similar board (39-40mm diameter) and separate driver.
    If yes then you could use one Luca linked (Cutter has similar http://www.cutter.com.au/proddetail....ut1903&cat=101) or one with 3 LEDs, 3 XP-L or similar will give you same or more light as 7 XP-G.
    Than depending on option we could help you find a driver, assuming there is a space for it.

    So
    1. Check if there is a space for driver somewhere under LED board.
    2. What kind of switch you have? Electronic or mechanical push button (variation, like magnetic, rotary, etc.)
    3. How much space is there for optics - how tall it can be I believe 7-up optic is pretty flat, probably about 10mm
    4. What is a voltage of your battery?

  4. #4

    Default Re: Need new light för my Green Force .. but cant find ! HELP

    Quote Originally Posted by arek98 View Post
    Try contacting Cutter maybe they have some old stock that is not on their website and you can buy exactly the same board.

    Otherwise check if there is enough space to put similar board (39-40mm diameter) and separate driver.
    If yes then you could use one Luca linked (Cutter has similar http://www.cutter.com.au/proddetail....ut1903&cat=101) or one with 3 LEDs, 3 XP-L or similar will give you same or more light as 7 XP-G.
    Than depending on option we could help you find a driver, assuming there is a space for it.

    So
    1. Check if there is a space for driver somewhere under LED board.
    2. What kind of switch you have? Electronic or mechanical push button (variation, like magnetic, rotary, etc.)
    3. How much space is there for optics - how tall it can be I believe 7-up optic is pretty flat, probably about 10mm
    4. What is a voltage of your battery?

    I have space approx 38-40 max 40mm diameter for one board.
    is driver made a lot of heat ?

    The light head is a green force tri star .. in the orginal...
    the space a have is as pic show


    switch have green force head to green force conector on a e/o cord
    so a use rotary will put it on and off.... very easy ... and dont break so easy

    space for optic ::: 10-12 mm depend how you measure 7 optic is flat.
    my battery is a 12 volt Light Monkey 20 Ah Li-Ion

  5. #5
    Flashaholic* lucca brassi's Avatar
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    Last edited by lucca brassi; 05-01-2017 at 02:36 PM.

  6. #6
    Flashaholic
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    Default Re: Need new light för my Green Force .. but cant find ! HELP

    Fredrik, where are you? I.e, where is best for you to buy things? USA, Europe?

    Yes, driver at that power needs to be heatsinked it will get hot.

    Is your optics like this? http://www.luxeonstar.com/khatod-13-...mm-round-optic

    It looks like your current board was sitting on upper edge in head leaving lot of space below



    So, I assume you have just one level, is that right?
    How much light you want vs how long runtime you want?
    What temperature of light you want, you ok with cool white, I prefer something around 5000K

    My guess is what you had was somewhere between 2000-3000 lm with runtime about 2.5-3h from that canister http://www.lightmonkey.us/20-ah-conversion
    Is that right?

    I think you should get new 7-up to match you optics, there is few of them, Luca linked some, these are nice too http://www.luxeonstar.com/neutral-wh...ound-led-230lm, then get one level boost driver that will drive them as hard as you require - depending on LEDs 1A-1.5A

    Other option would be to use 3 LEDs that can do 3A (XP-L or XM-L) but I think you will have hard time finding them on 40mm board and optics will be taller (too tall to fit). You could drive that wilt buck driver at 3A or so.


    7-up
    http://www.cutter.com.au/proddetail.php?prod=cut1374 link to optics in case yours does not fit (it should) are on the page
    http://www.cutter.com.au/proddetail.php?prod=cut1357 same but cool white - bit more lumens but cool

    https://www.led-tech.de/en/LED-Modul...8_242_245.html cool white
    https://www.led-tech.de/en/LED-Modul...0_242_245.html ~4000K

    driver
    http://www.taskled.com/hboost.shtml kind of big at 1.3" but from picture it should fit, can set current up to 3A by on board pot, after that simple on/off - VERY GOOD quality and support, expensive
    https://pcb-components.de/led-aufwae...0v-detail.html smaller but taller, order current you want, probably 1.5A for XP-G2, no personal experience with that one


    Cut round metal board to fit bottom (see picture), I would drill 2-3 holes thru it into head body, shallow, just 2-3mm into head (assuming there is enough metal), use thermal compound between it and body and crew it there.
    If no holes then use sticky thermal pad, don't use epoxy wit may crack eventually and get loose
    Drill hole in it for wires from driver to connectors below.
    Attach driver to this board with thermal pad, some crews, connect wires to head and to LED board.
    Put LED board in place, lens, close the head. Done!

    P.S., if you buy driver from taskLed it comes with very good thermal pad, you may ask George when ordering pretty sure he will send you another piece for few cents so you can attach this driver metal board to head
    Last edited by arek98; 05-01-2017 at 11:36 PM.

  7. #7
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    Default Re: Need new light för my Green Force .. but cant find ! HELP

    I'm thinking there is very little contact between head and LED board, it my died because of overheating.
    Should be little better when driver is separated but still.
    I would use thermal compound between head and board, maybe try to figure out how to increase contact surface between them.
    Maybe find cooper pipe little bigger than diameter below it, about size of board 40mm.
    Cut about 30-40mm long piece, cut segment form length about 10mm to leave C shape, then leave 10-12mm long piece and bend rest inwards removing metal that gets in the way and overlaps, making kind of cup. Not sure if you get want I mean, I made something like that but with just small piece bend here (left light)


    Use thermal pad or thermal epoxy like Arctic Alumina (not ideal but it may be only way here) to attach it to LED board so when board sits in it place it gets inside head and makes contact with wall (use thermal compound between).
    Last edited by arek98; 05-02-2017 at 12:04 AM.

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