What did you mod today?

Nothing ground breaking but something new to entertain me :) ...

It's been a while that I've done some emitter/driver swaps. This is a triple host swap. The main

reason for this is to get rid of the XH-P 50 doughnut hole beam in the L2, and the 6V Zener FET driver had to go

with it. I've also found that with 2x 26650s, this older LED is overdriven by the MTN 17mm. The solution is to use the

Guppydrv Rev. 2 group 12, at no more than 70% or lesser batteries. There are Carclo single emitter TIRs to fix the

doughnut and I have a number of S21As. I used a clear TIR, at first, but the beam is better with a 'sanded' TIR.

I want an SFT40 but until I order one, the next best thing I have in inventory is an SST40 for the L2. My MTN 20mm

Crescendo driver makes for a simple yet interesting thrower interface. Who wants anything but 100% in a thrower anyway?

The Utilitech 3C has a great reflector with very good throw, similar to the L2 and the XP-L HI won't be

too hot for the plastic reflector.

After the swaps:

This has been a great throwy host that just about handles it all. I've had it in the vehicle with Li AA primaries, and can be setup

for a 21700 or an 18650.

V11r mod to 519a


more details: Sunwayman V11r LED output comparisons 219b, LH351d, 519a

steel 14500

14500 stainless steel from AE

osram CSLPM1.TG
driver biscotti
switch convoy
clip FWAA

Lep in 600mm lens at the moment without Wavien

No data at the moment,
cause rainy and snowy and windy

You cant measure at 10 meter (200 KLux)
cause Luxmeter shows overload

COB is another project .

Regards Xandre

SFT40 in an EC01… not a success :confused:

First the small screw preventing the mcpcb from rotating was in the way. Not a major issue though.

But I forgot to take the OP reflector into account, stupid… I don’t even know what to call this, except the word iris comes to mind.

Next up: try again, but then reflow the emitter to an Astrolux FT03 that I have lying around. But that’s for another day!

I tinkered a bit with Convoy’s 12V 2,5A GT-FC40 driver. I changed it to 6V output and adjusted boost converters input limit to higher value. It was limited to 10A, but MP3431 boost converter should handle higher. I also changed bigger 1R5 valued inductor to it from broken Convoy driver. With 6,7 mOhm current sense resistor mine gives an output of 6,2A and draws 12A from battery. This with battery voltage of 4,1.

Nice driver modding Haukkeli :+1:

One 21700 and boost driver from Simon.

ok,but its stock driver there?

This one

I haven’t done anything with my flashlights anymore for several months, but today I added aux leds to my edc FWAA. Due to the fact that attiny85 sits inside, there is only one color - ice blue, but I think that’s enough for me.
imgur gallery

FWAA aux mod

I also finished a mod for a friend recently. He saw it at Vinh’s and wanted it too. 7x xhp50.2 5000k mule.
Apart from the auxes, I also added a blue GITD tape to the inner wall. I think it was a good idea.
imgur gallery

Wow! outstanding work

That is really neat…outstanding! Putting that on my list of I-should-probably-dos.

congrats on your mod

there are some inexpensive Novatacs on ebay atm… if you need more… LOL

I just modded one to 519a 4500k, and did the 250 click unlock, to make it programmable…

really pleased with the beam quality, and output increased to 270 lumens…

more pics and info here

250!? And some people complained about 20 clicks instead of 10 in Simon’s drivers.

Just for fun to see what would happen and get some practical experience with flashlight modding; Convoy L2 with B35AM. Maybe a high CRI thrower.

I’m considering this a work in progress. Some practical limitations, such as no OP reflector available and unfortunately no 2 cell 6V driver (used the 20mm Convoy B35AM driver). The dedicated B35AM gasket is just too small for the reflector hole, so had to use a unknown gasket that was much thicker, but fits (possibly XP). Also the stock L2 tail button is not suitable for controlling it. Need to find a replacement for that. But I’m was pleasantly surprised by the beamshot. Was expecting something floodier, but it actually shoots out pretty straight. It throws further than the DM11 with B35AM. But up close there are rings that I would like to get rid off, just don’t know the cause.

Looks like the lens AR coatings creating those rings

@Verodin, I believe those rings could be reduced by a flatter, more shallow gasket. The emmitter just needs to be level with the base reflecting surface of the reflector. It really isn't that bad and the beam is nice. The color comes from the lens anti-reflective coating.

Installed an LED Lenser-type optic (out of a Jobsmart Tractor Supply Company headlight that I was planning to give away) into an S21A. Also found an e-switch that may be a good replacement for a D4 switch. The beam is a fixed, broad hot spot from the floody LH351D at 4000K. A beam kind of like a CO1S.

Tue, 02/15/2022 - 00:15

Today, had to run to TSC for something else and they still have these. I'm glad I had it for parts but I wouldn't pay $12.99 for an optic.