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Old 11-28-2012, 06:06 AM #17
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Default Re: Anyone pushed a M140 beyond 2.0A?

Quote:
Originally Posted by arcaneinsomniac View Post
What kind of driver is it? boost/buck/both?
It's a buck driver that will operate with two li-ion cells.

If I feed it only one cell, the M140 lights up very very dimly in wide rectangular beam and is not focusable.


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Old 11-28-2012, 06:10 AM #18
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Default Re: Anyone pushed a M140 beyond 2.0A?

OK where is DTR he should be here as I'm sure he has pushed one or a couple dozen over 2.0 amps

I only did it once
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Old 11-28-2012, 10:46 AM #19
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Default Re: Anyone pushed a M140 beyond 2.0A?

Quote:
Originally Posted by ryansoh3 View Post
I would recommend this driver: 3V~8.4V 5W Cree 5-Mode Circuit Board for Flashlights (16.8mm*6.3mm) - Worldwide Free Shipping - DX

I'm using it to drive my 1.8A build with a sense resistor mod to 0.15 Ohms.

Good luck!
Thanks for the link bro. I like how this one is much lower profile than most that I have found. This one looks like it would actually fit. I am going to have to give one a try for sure.
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-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
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-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
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-650nm -324mW - 3.8mm OpenCan@428mA - C6
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Old 12-01-2012, 12:09 PM #20
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Default Re: Anyone pushed a M140 beyond 2.0A?

what do you think of this driver 4 modes ?

eBay | 445nm laser driver 1.5A Constant Current 4mode takes 2-18650 batteries
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Old 12-01-2012, 08:15 PM #21
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Default Re: Anyone pushed a M140 beyond 2.0A?

Way way way over priced. Stick to dealextreme.
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-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
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-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
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Old 12-07-2012, 01:34 AM #22
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Default Re: Anyone pushed a M140 beyond 2.0A?

ryansoh3, you modded a resistor on that driver to take it from 1.2A to 1.8A?

The page seems to say it has different output current depending on which LED diode which has me a bit worried...

Did you use a test load to set/test its current?
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Old 12-07-2012, 01:46 AM #23
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Default Re: Anyone pushed a M140 beyond 2.0A?

Its pretty normal for a driver to output different currents for different voltages that are drawn. This is why test loads have the ability to change the voltage they draw. You just test the driver at the voltage you will be needing for your diode and you are good to go.

Its also common practice to take a low current DX driver and add your own resistor to change the current.
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-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
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-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
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Old 12-07-2012, 01:49 AM #24
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Default Re: Anyone pushed a M140 beyond 2.0A?

I suppose I've been spoiled (in a sense) by spending $20 for my LD drivers for the most part. They generally are good about holding to some pre-set current no matter the Vf.
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M-140 445nm@ 1800mA in L2X body (I have both a 2x18650 and 1x18650 L2X tubes that I drive with either 2x18650 or 2xIMR18350) with G2 LFL lens
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M-140 445nm @ 1800mA Lazeerer X-Drive 2x14430 host thanks Ehgemus
Crooked 500mW O-Like Crown 532nm thanks Susie (but damnit, it's mounted crooked)
Mitsubishi "300mW" 638nm @ 775mA in Solarforce L2T Waterproof
A-140 445nm @ 1500mA flexdrive, Aixiz 445 lens in Solarforce L2P Waterproof thanks Jayrob
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Old 12-07-2012, 01:51 AM #25
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Default Re: Anyone pushed a M140 beyond 2.0A?

That is what you get with high quality drivers pretty much. I would expect say an x-drive to do output the same current for just about any diode. These cheapo drivers are a different story and require more testing. I have on the other hand used one of these which appears to output almost exactly the same current at different Vfs though it is a single mode driver:
http://dx.com/p/18v-5w-cree-circuit-...mm-5-5mm-26110
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Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
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-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
-650nm -128mW - 3.8mm OpenCan@200mA - C6 (Mohgasm JAD)
Laserbee II 3.2W and 5W Ophir LPM

Last edited by ApexProxy; 12-07-2012 at 02:00 AM.
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Old 12-07-2012, 03:19 PM #26
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Default Re: Anyone pushed a M140 beyond 2.0A?

I push an efficient M140 beyond 2A to test my new LPM and it measures 2.8 Watt.
I believe the diode can handle the 2A current.
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Old 07-21-2013, 08:17 AM #27
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Default Re: Anyone pushed a M140 beyond 2.0A?

Been running an M140 on a 2.12A X drive and 2X16340 successfully for about a month now in a handheld for anyone who is still curious about it.
Don't know how long it will last but will keep everyone updated.
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Old 07-21-2013, 01:25 PM #28
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Default Re: Anyone pushed a M140 beyond 2.0A?

Here's my 2A M-140 build. It's my daily driver, as I use it at work daily to burn hair and other fibers. With this amazing JayRob Cu heatsink, I've run 5 minute duty cycles, and regularly use it for >3 minute duty cycles. It still performs beautifully after several months and maybe as much as >1 hour on the diode.
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Old 07-21-2013, 04:27 PM #29
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Default Re: Anyone pushed a M140 beyond 2.0A?

What do you do at work that requires a 2W hand-manipulated laser??

Last edited by arcaneinsomniac; 07-21-2013 at 04:27 PM.
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Old 07-21-2013, 06:59 PM #30
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Default Re: Anyone pushed a M140 beyond 2.0A?

Yay thread necro XD

Erm, I am able to push M140s to 2A when they are efficient enough. My personal 2.7W M140 is pushed to 2A and it has at least several hours of total runtime with no measurable degradation yet. I use it ALL the time, literally every day it gets a few duty cycles in easy.
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Old 07-21-2013, 08:53 PM #31
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Default Re: Anyone pushed a M140 beyond 2.0A?

Use only high efficient M140 diode for the 2A current because they don't heat up so fast as the normal M140.
I have used a M140 in my Wizard Wand build with current set at 2A. I haven't heard from Smeerworst about a defect.
That diode was my most efficient M140 and reach 2.9W on 2A current.
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Old 07-21-2013, 08:57 PM #32
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Default Re: Anyone pushed a M140 beyond 2.0A?

That's one hell of a freak Blord. My 2.7W is the best I have seen yet at 2A. It appears the facets of the M140s are capable of quite a bit so as long as the diode is efficient and you don't allow too much heat buildup 2A shouldn't be that big of an issue.
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-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
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