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  1. #1101
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    Yes, you'll burn the leds cause they don't have proper hetsinking at first moment and overcurrent will generate a lot of heat.

    As I've predicted leds are in parallel. Yes of course some power is lost in cabling, connector and circuit. Can't tell exact numbers but can be somewhat.

    Hopefuly the leds are geniue Cree or they are their counterfieght LatticeBright? If you can make sharp macto picture of one led we can try to tell.

  2. #1102
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    Of course because if they are series then double current trought leds I just calculated this 10W-(2,5A*3V)=2,5W. I quickly looked over leds but there was no labels. Sure they aren't Cree at 9 dollar price tag.

  3. #1103
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    Picture of the leds would be nice so we all can see what can expect for such price.

  4. #1104
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    I bought an ssx2 and x3 off eBay last summer, both had the lattice bright crap in them. So 99% chance his does too. For the cheap price I did it just for the heads/drivers.
    Trek Marlin 29er

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  5. #1105
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    Quote Originally Posted by Vancbiker View Post
    IMO that is an example of very poor thermal path. Without some mods to the case and emitter plate, I'm feeling sorry for those overheated emitters after you increase the drive current.
    Heatsinking was decent.
    Stock heatsink/case 48 C at hottest point after 5min, emitter backplate without back cover 59 C.
    After adding silicon paste to the joint of emitter backplate and case:
    5min: case 52 C backplate 55 C.
    15 min: case 66
    C and backplate 71
    C.
    Done in room temperature with IR-thermometer.
    Not yet raised current


  6. #1106
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    aaand then I fried my circuit board
    Accidentally make open circuit when measuring led current so be careful when doing that!
    Don't know if better driver boards have protection for that.
    First thought to build myself new CC-CV driver from scratch but don't know if somebode has already found quality driverboard for that? Something like 5A would be nice?
    Or two of these 8.25W 3V~12V 2500mA 5-Mode LED Driver Board - Free Shipping - DealExtreme.

    edit. simplest way DC DC CC CV Buck Converter Step Down Power Supply Module 7 32V to 0 8 28V 12A HC | eBay.
    So fully adjustable external source to do some tests. Can fit it to same pack with battery.

  7. #1107
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    I got mine today. I opened it up, and found the red power wire pinched between the housing and the board. I insulated it, and will resolder it if necessary. The charger gives out 8.42/43 V. I also placed some thermal paste between the aluminum LED plate and the housing. The batteries are charging at the moment

    SolarStorm/FandyFire X2-img_20160120_212400-768x1368.jpgSolarStorm/FandyFire X2-img_20160120_212343-768x1368.jpgSolarStorm/FandyFire X2-img_20160120_195324-1024x575.jpgSolarStorm/FandyFire X2-img_20160120_195054-768x1368.jpgSolarStorm/FandyFire X2-img_20160120_194733-768x1368.jpgSolarStorm/FandyFire X2-img_20160120_194114-1024x575.jpgSolarStorm/FandyFire X2-img_20160120_193209-1024x575.jpg

    I was told that the light were not cree, but lattice bright. Fine by me, just ask for a refund then....

  8. #1108
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    They are lattice bright, wont get lights that cheap off eBay with cree anymore.
    Trek Marlin 29er

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  9. #1109
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    thought as much.... well I already contacted the seller. if I get even a partial refund.. fine by me.

  10. #1110
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    Quick question, what size is the male connector on the lamp? I tried 5,5x2,5mm but it has poor contact. It looks like it should be 5,6mm or something. My local electronic shop has 5,5 and 6,3.

    I need a plug to connect my charger to the pack, without using aligator clips on my pack directly. Thank you

  11. #1111
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    5.5x2.1mm

  12. #1112
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    Quote Originally Posted by ChILd_ReBoRn View Post
    thought as much.... well I already contacted the seller. if I get even a partial refund.. fine by me.
    Did you get refund? Was it ebay or some other place.

    BTW: How did these lights do, are they good?

    I have received exactly the same piece and thinking what to do

  13. #1113
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    Don't buy cheap lights off eBay. Their total crap. Been down this road with far to many lights and many more I've read of others dealing with tons of problems.

    Better to spend a little more and get a reputable light from a decent company. Cheap China junk just isn't worth the hassle and risks anymore.

    Sent from my XT1565 using Tapatalk
    Trek Marlin 29er

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