Upgrading BLF GT with a XHP70.3 HI led beamshot included

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AlexGT
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Upgrading BLF GT with a XHP70.3 HI led beamshot included

I decided to upgrade the BLF GT to XHP70.3 HI, My BLF GT light was the original stock XHP35 HI model, and over the years I replaced the stock XHP35 HI led and driver to XHP70.2 With a TexasAce GT70 driver, and now I moved on to HXP70.3 HI with the same TA Driver.

More info about modding the GT on this thread

https://budgetlightforum.com/node/56040

Purchased the XHP70.3 HI led from Kaidomain here

http://kaidomain.com/Cree-XHP70_3-HI-White-6500K-CRI80-SMD-7070-LED

I polished the copper MCPCB before reflowing the XHP70.3 HI to get better heat transfer to the body of the light.

Whats-App-Image-2022-07-28-at-3-48-45-PM

I used Thermal Grizzly Kryonaut High Performance Thermal Paste to get good heat transfer
https://www.amazon.com/Thermal-Grizzly-Kryonaut-Grease-Paste/dp/B011F7W3...

Here is a comparison beamshot against a stock AceBeam K70 thrower XHP35 HI Led with the the BLF GT XHP70.3 HI. both lights are on turbo. The beam on the modified GT is about 10% bigger than the beam of the AceBeam K70 but with at least twice the brightness! I love it! Love

GT XHP70.3 HI on top and AceBeam K70 XHP35 Hi on bottom
Whats-App-Image-2022-07-28-at-3-20-56-PM

Thanks for looking!
AlexGT

Hoop
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Nice work. Thumbs Up

DENGOH
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What a beast you’ve created. Thumbs Up
It should be 800+kcd candela?

cool i'll see you when you get there

Henk4U2
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My BLF GT is from the first series and it is still very stock. I’ve seen some mods that are a bit beyond my skills, because they were mostly based on reflowing the led.
If Luminton (Neal?) could update their conversion kit with an XHP70.3 HI led I probably would jump on the wagon.

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

AlexGT
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I tried it outside last night and the 1 mm shim is a good focus, I did not notice any center hole in the beam at longer distances. Will leave it like that, This thing rocks!

Hoop
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My GT70 has arrived but I am still waiting for the XHP70.3 Hi.

Did you use a couple of strap wrenches to remove the bezel from your light? I am considering machining some dedicated tools in order to do it.

Scallywag
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Hoop wrote:
My GT70 has arrived but I am still waiting for the XHP70.3 Hi.

Did you use a couple of strap wrenches to remove the bezel from your light? I am considering machining some dedicated tools in order to do it.


My GT opened with rubber strap wrenches.
AlexGT
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I used rubber strap wrenches, I used these, the thick ones on the head and the thin ones on the body below the button


https://www.amazon.com/Craftsman-Piece-Rubber-Wrench-9-45570/dp/B00K92810A

Hoop
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Ok thanks guys!