Driver retaining ring that clears Nanjg 105c in Convoy S series?

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Mike C
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Driver retaining ring that clears Nanjg 105c in Convoy S series?

I just picked up my two new M2 hosts from the group buy (thanks vex_zg) and I really like that the driver retainer ring clears the AMC chips on the Nanjg driver. Does any of the Convoy S series have a retaining ring that clears the driver like that? From the S series I only have the S2, and it does not. I either filed them thinner or soldered the driver to pill.

M2 photo shamelessly stolen from RaceR86’s review: http://budgetlightforum.com/node/34251

Mike C
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I guess I can assume that none of the Convoy S series retaining ring clears the driver in stock form?

hank
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> Convoy S series retaining ring

Needs some filing, ‘oogle — click for an image search on the results page — will find pictures

https://www.google.com/search?q=site:budgetlightforum.com+convoy+driver+...

DEL
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I have several S2, S2+, S3, S6. Some were bought as hosts, some as complete lights.

Here is how I got it:

  • S2, S2+, S6: These come soldered when it is a double-sided driver (Nanjg 6x or 8x). And not soldered when it is a single-sided driver (Nanjg 3x or 4x). All my soldered ones came from official channels and this is not an indication of fakes.
  • S3: These do not have a pill (integrated emitter shelf). These always have a ring (there is no brass to solder the driver to!). The ring is bigger than on the other models and should fit both single and double-sided drivers.

I have long since reworked the ones that had double-sided boards with aftermarket single-sided drivers. The rings are available loose at FastTech:

https://www.fasttech.com/p/1583600

hank
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Oops. I tried just tightening the retaining ring down on top of the 7135s on several flashlights.

And — butterfingers! — have dropped several of them and broken the 7135s. Details at:

http://budgetlightforum.com/comment/1200077#comment-1200077

Having now broken three of the 7135s by just tightening the retaining ring down pressing on the 7135s — and then eventually dropping the flashlight.
I’m going back to filing down notches (or else filing the corners off the 7135s)

Lightbringer
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Isn’t it easier to just solder the driver to the pill?

I’m not a fan of soldering drivers, and press-fit even less, but even if you don’t want to solder allllll the way around the periphery, just a few solder-blobs would work.

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hank
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Personal preference for keeping it easy to update the flashlight host body.
Once solder gets into the threads of a pill it’s hard to clean out again, to remove a driver.
Once a pill is hot enough to accept solder, the solder tends to spread out quite a bit.
And I like being able to replace drivers and LEDs in flashlights — there’s so often one that’s newer to try.
Retaining rings make it easy to swap drivers and using one makes sure the driver is in flat and well grounded.

kiriba-ru
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http://ibb.co/n1xVhQ
Threads size is same to convoy S lights.

Henk4U2
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You can buy driver retainer-rings from FT. The original is on the left.
I hollowed the ring (at the driver side) out with a small grinding stone attached to my power drill.
When you do it right, the ring just “cups” the AMC’s

I used the ball-shaped thingy, second from the right in the Piranha (Black & Decker) blister.

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