Seeking advice for how to stack resistors - FX-30 driver mod in Convoy L6

Yeah, I have noticed that they don’t read glossy surfaces as well but if you take a reading down in the fins they are usually pretty good.

Also if I firmly gripped both of them to get equal contact you could easily feel the L6 was hotter, it was only under “light touch” that the S70 felt the same.

Like I said, they are really so close it doesn’t matter from a performance aspect. You will not find anything to definitively say that one of better then the other. It all comes down to preference and looks in this case.

I like the L6 better myself but the S70 makes a nice “beater light”. Honestly I think it will look better once it has been worn in some.

Another “plus” on the Convoy L6 is the possibility to use a single cell tube with 2 of the new 26350 cells. Makes for a very compact but still quite potent powerhouse! :smiley: (doubtful anyone would carry it in a pocket though. :wink: )

Yep, a single cell tube does make for an interesting sized light. I say interesting because I am not totally sure what I would do with it over the dual cell tube but I am sure someone would have a use for it.

what will be advantage/disadvatage of using r120 vs r100 resistor?

Less heat, more run time with the R120. (R100 will be less resistance, more amperage, somewhat more lumens)

thank you db

Does anyone know if adding a resistor effects the other brightness levels or just the highest level?

Only turbo mode, other modes are not affected.

Another question. In doing this resistor mod, aren’t you just soldering it in paralell atop the existing one?

Correct, just slap it on top and solder it in place.

The difference with an R100 is noticeable but not mind blowing by any means. But then in my EDC going from 800 lumens to ~1200 lumens is hardly noticeable to the point I don’t even use turbo anymore.

Whooahhh…just looked at my spare driver from Simon. I’ve done simple mods before, BUT …now holding the driver in my hand and seeing how tiny these things are I don’t think I’m capable. Not with my existing iron and steadiness of nerves in my hand/fingers. Mannnnnnnnnnnn

Anyways……

So , there are 2 R082’s on the board. Do you solder the R100 over the terminals of both R082’s or just one of the R082’s?

It doesn’t matter as long as it is connected to both ends.

It’s the same, they’re in parallel

Thank you will34. I’m still a dummy with boards… :blush:

That’s what it thought as well. Lol

You might need to buy a new tip that’s narrow and pointy if your existing one is too rounded. Have good lighting, a clean work space and a magnifying glass. I’ve got a thing called a “helping hand” that can hold the driver and a magnifying glass right over it. Then rig up a good light to shine on it. Use some very pointy tweezers to position and hold it down. If your iron is hot and clean with a tiny bit of solder you should be able to just touch one end for a second and get it done.

There are actually tutorials online for soldering tiny things. Check those out. You can even practice on an old circuit board you have laying around. It’s not that hard.

Yep, I’ll have to re-tool before attempting such a MINI -mod. And I thought I was good when I did an led re-flow……LOL

Hey there,

I tried a resistor mod on my L6 as well. I used a R091 out of another driver I don’t need anymore. I couldn’t really notice a difference to my original other L6. I tried different batteries but not a real difference. I bridged the resistors with a few cm of 22AWG wire. The light didn’t work. It just flashed one time for a tiny bit of a second after clicking the tailcap switch. I have the “silver” version of the light.

Anyone here that has an idea what could be wrong?

Thanks,
Tom

Adding the R091 should give you 7.25 A if all spring bypasses are okay. 4690 lm vs. 3800 lm stock should be noticable but difficult so see without direct comparison. Better measure it.
The 22AWG could have triggered the overcurrent protection of your protected batteries.

Is it working without the wire now?

Does anyone know anywhere in the uk an r120 can be found?

Is this the right one? - PANASONIC - ERJ3BSFR12V - RESISTOR 0603 R120 1 0.2W For 5 for sale online | eBay

Or either of these? - http://www.mouser.co.uk/Passive-Components/Resistors/SMD-Resistors-Chip-Resistors/Current-Sense-Resistors/\_/N-7h7yu?keyword=R120&P=1ymfaz2

I’m a bit of a noob when it comes to these things :smiley:

Your Mouser link has the needed 1206 size of the R120.