Want your XPG LEDs reflowed

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nitro
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Want your XPG LEDs reflowed

Hey guys I’m posting to see if anyone would like there LEDs reflowed on a copper sinkpad board ? All I have left is 30 xpg’s left

I have some new soldering past that works GREAT

I’m asking for u is to pick the led of choice that will work on the xpg board and ill order it and once done ill ship to u, I can also test the LEDs if u like

If interested please pm me and we will Discuss about it thanks

and ill give 100% refund if ur not happy with it

Edited by: nitro on 03/09/2013 - 15:39
PyTech
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Q. What was the increase in output (with copper) again? I read somewhere but cant remember where. Was it something like 10-15 percent? thx

-Sean

PilotPTK
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PyTech
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PilotPTK wrote:
http://budgetlightforum.com/node/19331

Yep, thanks that’s the place. Although that was with XML’s That’s way more of an increase than I thought. Another Q. Does anyone know the downsides of using copper?

-Sean

skyrider1
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I think the main downside for me would be the higher Vf.

PilotPTK
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PyTech wrote:
PilotPTK wrote:
http://budgetlightforum.com/node/19331
Yep, thanks that’s the place. Although that was with XML’s That’s way more of an increase than I thought. Another Q. Does anyone know the downsides of using copper?

Other than being more expensive, I can think of not a single downside to using copper over aluminum in this application.

PPtk

I am currently extremely busy with work. Please do not expect a response from me quickly. I will be dropping in as time permits, but the amount of time I can dedicate to responding to topics and PMs is very limited.

PilotPTK
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skyrider1 wrote:
I think the main downside for me would be the higher Vf.

I suppose, but the increase in brightness due to reduction in die temperature is more than the reduction due to increased Vf. Hence, still a net gain.

I’d be hard pressed to call that a downside.

PPtk

I am currently extremely busy with work. Please do not expect a response from me quickly. I will be dropping in as time permits, but the amount of time I can dedicate to responding to topics and PMs is very limited.

PyTech
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K thanks for the response. Yea I was just wondering why they don’t just manufacture all of them with copper, since the performance seems to be so much greater. I was guessing it had something to do with stability, but thanks for the clarification. Smile

-Sean

Bort
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PilotPTK wrote:
skyrider1 wrote:
I think the main downside for me would be the higher Vf.

I suppose, but the increase in brightness due to reduction in die temperature is more than the reduction due to increased Vf. Hence, still a net gain.

I’d be hard pressed to call that a downside.

PPtk


in XM-L2 its a problem , i would like to drive it at 3.5amps, but would not get much time on a fresh battery before output starts falling, especially on copper.
However, if i had a buck/boost driver, or was lighting using mains power then i would have no complaints

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nitro
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Bump if no one is interested ill sell the rest of the 20mm boards

FlashPilot
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PM sent for reflowed XPG2’s. Thanks again for all of your hard work in bringing us copper sinkpads. Do you think XPG2 on copper will survive 4.5A?

nitro
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i have a cree led in my aspheric build right now and im pushing it at 5.5 amps ill go see what led i used Smile