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modding question, DQG AAA (i.imgur.com)

submitted 1 year ago by jon_slider to c/flashlight

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What might be a good strategy to remove the stock XP-G LED on the DQG Ti AAA driver? I want to install a 219b. Please see this album:

https://imgur.com/a/CgNuZcO

I’m debating options:

hot air from the LED side, but not sure how to keep the components on the bottom of the board from falling off.. I do have some Kapton like tape, https://www.amazon.com/gp/product/B00W3FAFP0/ but it has almost no adhesive and does not stay in place.

Im wondering if “real” Kapton tape would stick better? Ive never tried it.

Im debating using a soldering iron to heat the positive contact disc on the bottom of the driver, below the LED.. same concerns about components falling off. I expect the positive contact disc would be the first thing to get desoldered.

brainstorming and suggestions welcome..

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[–] Adair21 2 points 1 year ago* (last edited 1 year ago) (1 children)

How many components are on the bottom? If it's just a few I'd go with the hot air and solder anything that falls off back on afterwards

Edit: I just saw the album lol. I say take good photos and go to town with the hot air. It wouldn't take long even if you had to solder all those bottom side components back on

[–] jon_slider 3 points 1 year ago (1 children)

Adair21> go to town with the hot air

Thanks! I needed that little push of encouragement... really appreciate your input.. Will post results after I take the leap.

[–] jon_slider 1 points 1 year ago* (last edited 1 year ago)

I Haz Success!

album: https://imgur.com/a/CgNuZcO

I could not resist dedoming:

[–] masterironchef 1 points 1 year ago* (last edited 1 year ago)

To quote myself from a reddit post from a few years back (I just nuked the album in imgur recently, oops!), I modded a DQG AA (not AAA) with a Nichia 219C:

"So, using the very fine tip of my soldering iron I reflowed that son of a bitch in place (yes without removing the single-piece driver/LED board or the retaining collar) using my $17 Amazon iron set to what it claims is 450C (840F) by just heating the exposed nubs on the positive and negative solder pad that stick past the LED package. The middle thermal pad came off the driver board but without any apparent ill effects."

Some LEDs can be heated from the side in this manner, too.