XHP-50 P60 Drop in AliExpress

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AdrianWA
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texas shooter wrote:
I got two of them a few weeks ago. One I left with the 8 7135 chips at 2.8 amps it’s an okay light with lots of spill. The other I added 4 7138 chips bring it up to 4.3 amps and it really brings this dropin to life. As is maybe 1100-1200 lumens, extra chips 1500-1600 lumens. My 12 7138 chips dropin from Pflepro actually measured 1790 lumens at 4.56 amps. The dropin is definitely worth it and works very well. With the extra chips it needs a good wrap of copper and is very much worth the effort.

 

Do you sell a P60 drop in than can use 4 x 18650 by chance?

texas shooter
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AdrianWA wrote:

texas shooter wrote:
I got two of them a few weeks ago. One I left with the 8 7135 chips at 2.8 amps it’s an okay light with lots of spill. The other I added 4 7138 chips bring it up to 4.3 amps and it really brings this dropin to life. As is maybe 1100-1200 lumens, extra chips 1500-1600 lumens. My 12 7138 chips dropin from Pflepro actually measured 1790 lumens at 4.56 amps. The dropin is definitely worth it and works very well. With the extra chips it needs a good wrap of copper and is very much worth the effort.

 


Do you sell a P60 drop in than can use 4 × 18650 by chance?

Sorry no. Take a look at these.
http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board/S009736-18V-5W-Cree-Circuit-Board-for-Flashlights-16_8mm-5_5mm?limit=100
http://kaidomain.com/Flashlight-DIY-and-Tools/led-drop-in/3W-395nm-UV-3V-18V-1-Mode-OP-P60-UV-Drop-in-Dia-26_5mm

Your output is going to be around 1 amp. You might not get any extra run time with more than one cell. The LED change out in the Dropin is going to only need a soldering iron, nothing fancy. You’ll need a 20mm star with LED.

AdrianWA
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texas shooter wrote:
AdrianWA wrote:

texas shooter wrote:
I got two of them a few weeks ago. One I left with the 8 7135 chips at 2.8 amps it’s an okay light with lots of spill. The other I added 4 7138 chips bring it up to 4.3 amps and it really brings this dropin to life. As is maybe 1100-1200 lumens, extra chips 1500-1600 lumens. My 12 7138 chips dropin from Pflepro actually measured 1790 lumens at 4.56 amps. The dropin is definitely worth it and works very well. With the extra chips it needs a good wrap of copper and is very much worth the effort.

 

Thank you so much.

 

Do you sell a P60 drop in than can use 4 x 18650 by chance?

Sorry no. Take a look at these. http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board... http://kaidomain.com/Flashlight-DIY-and-Tools/led-drop-in/3W-395nm-UV-3V... Your output is going to be around 1 amp. You might not get any extra run time with more than one cell. The LED change out in the Dropin is going to only need a soldering iron, nothing fancy. You'll need a 20mm star with LED.
T80Eagle
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Hi, I’m new to flashlights… already starting to get addicted.
I’m assuming this XHP50.2 light is designed to be used with a single 18650 battery, since the listed voltage input is 3.7V~4.2V.
But are there other battery options for this LED in a P60 flashlight? For example, what happens if I power the flashlight with two CR123a batteries instead?

raccoon city
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@T80Eagle:

There's a link in my signature on how to post pics on BLF.  ;)

texas shooter
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T80Eagle wrote:
Hi, I’m new to flashlights… already starting to get addicted. I’m assuming this XHP50.2 light is designed to be used with a single 18650 battery, since the listed voltage input is 3.7V~4.2V. But are there other battery options for this LED in a P60 flashlight? For example, what happens if I power the flashlight with two CR123a batteries instead?

I bought two of them when they came out. Two CR123A’s could fry the driver. Max continuous draw rating is 1.5 amps on most CR123A’s this dropin draws 2.8 amps on high. Two good reasons not too. However this dropin was good at 2.8 amps, I added 4 chips to one and at 4.2 amps it’s even better.

T80Eagle
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Ok, if I understand you, it sounds like two CR123a batteries would produce too much voltage and not enough current, which makes sense to me.

You added four 7135 chips, which put more current through the emitter, and I’m guessing, that required a better heat transfer method? Man I have lots to learn. I have a soldering iron but I’ve only used it for fixing wires, I’m going to look for a guide or youtube video before I short something out lol

texas shooter
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T80Eagle wrote:
Ok, if I understand you, it sounds like two CR123a batteries would produce too much voltage and not enough current, which makes sense to me.

You added four 7135 chips, which put more current through the emitter, and I’m guessing, that required a better heat transfer method? Man I have lots to learn. I have a soldering iron but I’ve only used it for fixing wires, I’m going to look for a guide or youtube video before I short something out lol

I wrapped the brass part of the dropin with a strip from a 24 ounce Monster. Copper wrap works the best but with the large soda can it thicker and only takes 1-2 wraps to fit it tight into the host. The aluminum strip needs a light scrubbing to get the coating off for better thermal and electrical contact. Normally “as is” with a 2.8 amp dropin works fine without a wrap. Those 7135/7138 chips come in 350 and 380 milliamp flavors. http://www.mtnelectronics.com/index.php?route=product/category&path=25_76

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