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Thread: 100w led flashlight.

  1. #1

    Default 100w led flashlight.

    I am looking at buying this LED and this battery. I will then mount the led onto a computer heatsink with fan.

    My questions are:
    Do I need a current limiter and where would I find one for 36V@3.5A?
    What sort of reflector and lens do I need?
    Would y'all recommend a different battery?

  2. #2
    Flashaholic COAST's Avatar
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    Default Re: 100w led flashlight.

    why not an SST-90?
    Quark 123^2 Turbo: Quark 123^2 Tactical S2: Quark 123 Tactical S2: Quark 123^2 NW Regular: Fenix PD30 R2: Fenix L2D Q5: Solarforce L2 w/ Nailbender SST-90 drop-in: Incendio v2: Inova X1: Robert's Custom EDC: HDS Ra Clicky 140E w/ blk SS bezel

  3. #3

    Default Re: 100w led flashlight.

    Quote Originally Posted by COAST View Post
    why not an SST-90?
    How would it be better?

  4. #4
    Flashaholic* bshanahan14rulz's Avatar
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    Default Re: 100w led flashlight.

    lower voltage but higher amps, one large single chip instead of just a bunch of little ones, around 2000-3000lm output, 20W consumed. 5 of these would use the same 100W, but put out 10000-15000lm instead of 8000.

    The one you picked has simplicity going for it, though. Slap LED plate onto heatsink, add battery and current limiting, and blast away.

  5. #5

    Default Re: 100w led flashlight.

    Why not see if you can get ahold of a CSM-360 LED. It's basically 4 SST-90 together like an MCE. I've got one in a Freilong light and it rocks! It's meant to be rated at 100W and 5000+ lumens. I'd say it close to up there, but it would be fantastic to see one of these 360s fully ramped up in a custom!
    Last edited by warmurf; 06-30-2011 at 05:21 PM.

  6. #6
    Flashaholic*
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    Default Re: 100w led flashlight.

    Quote Originally Posted by birdman3131 View Post
    . . . . Do I need a current limiter and where would I find one for 36V@3.5A? . . . . .
    I have added a dollar of parts to a $11 120 watt 12v-in Boost Converter that gives it true Constant Current output. I'm finishing the 3-stage brightness control and then I'll publish the details here.

  7. #7

    Default Re: 100w led flashlight.

    not realy a flashlight, but a portable working light with a csm-360:

    http://www.candlepowerforums.com/vb/...th-one-CSM-360

    i will ever prefer the csm-360 instead of the multi emitter led´s. easyer to focus and the build quality is a lot better. if you have a chance then use a bridgelux emitter and not this noname array. the bridgelux are still cheap an some have a very good cri.

    and here i real flashlight with a multi-emitter array:
    http://www.candlepowerforums.com/vb/...umen-many-pics

    it is realy hard to get a boost driver for such high voltages at these currents.

    markus

  8. #8

    Default Re: 100w led flashlight.

    are you shure that you wan the pb battery? they are realy heavy-weight.

    what is your goal for this setup? i portable working light like mine or a real flashlight like the bridgelux mod?

    markus

  9. #9
    Flashaholic* fivemega's Avatar
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    Default Re: 100w led flashlight.

    Quote Originally Posted by bshanahan14rulz View Post
    lower voltage but higher amps, one large single chip instead of just a bunch of little ones, around 2000-3000lm output, 20W consumed. 5 of these would use the same 100W, but put out 10000-15000lm instead of 8000.
    100 watts of parallel LEDs powered by a 3.7 volt battery requires about 28 Amps of switch but same power of LED (100W) powered by 36 volts requires only 3 Amps which is easier to switch, easier to wirings easier charging and less power loss..

    Quote Originally Posted by birdman3131 View Post
    What sort of reflector and lens do I need?
    Keep in mind that don't expect to have anarrow beam thrower.

  10. #10

    Default Re: 100w led flashlight.

    i got some my parts from dx for a 8000 lume light, but the pos and neg are on the same side cant tell wich "wing" is neg or pos.
    hoping to do a test run on 8 18650 "pcm" to keep it at 3 amps refector SKU 39963 at dx

  11. #11

    Default Re: 100w led flashlight.

    how can i put it in my car headlight?

  12. #12
    Flashaholic
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    Default Re: 100w led flashlight.

    You don't! It's illegal!

  13. #13

    Default Re: 100w led flashlight.

    Quote Originally Posted by kamikazinyc View Post
    how can i put it in my car headlight?
    lol ever had oncoming truckers throw a bunch of nuts and bolts at you, on the road?? you will if you drive with that thing on.

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