Convoy L2/L6 modding thread

So this driver and the previous one are both pulling the same amps from the same batteries, yet the 17mm had more output?

Maybe there is a difference in driver efficiency?

Maybe there was a difference in amp draw at the emitter?

It’s also possible your P2 emitter has suffered a bit of damage over time with such high current going through it.

I’m assuming your light box and meter are all setup the same.

Just spit balling ideas here.

Yes, here is what Dale said earlier.

Get the UCLp “G” you won’t regret it.

UCL 98- 99%

Borofloat 94%

(.095” thick) A/R Glass 99%

UCLp 97% BONUS 99.999% chance of not shattering and taking out you reflector!

Thanks for your answers .

Kwb unfortunately shipping is the deal breaker everytime i try to get something from the US , will have to make a big order some time :stuck_out_tongue:

What is the “g” version?

Kawi is being silly. UCL means Ultra Clear Lens. UCLp means Ultra Clear Lens plastic, actually it’s acryllic.

Borofloat is glass, so of course it can’t be UCLp. Just sayin…

Borofloat is actually a different type glass, the UCL is water white. 98-99%.

Borofloat is 94% and made of borosilicate glass. The Borofloat isn’t AR coated.

“G” refers to giorgoskok :smiley: :smiley:

I see.

I’m gonna get the uclp and check it out. Use the stocker as a spare. :+1:

I think the meds may be gettin to me, I first posted this on the C8 thread, then realized I was somewhat off base… :blush:

Edit: Can you spot 9 lights and a laser? lol That’s a tiny corner of the bottom shelf, with 2 full shelves above it!

Hey lads what KCD numbers are people getting from there L2? I measured mine at 270KCD but i am not expert at measuring distance. I shined it across a bay i was fishing at and i could see the light on a white house which is 1km away. It light up the reflectors easily but i was surprised to see it shine on a house.

Its hard for me to gauge distance i live on the coast and we stick out further then most of sydney so we cop all the wind this leaves a lot of water particles in the air. I have noticed if i do beam shots at my girlfriends parents although its a lake its like 30min inland and there isn’t much wind and waves so all lights shine better there.

!

!

Can someone give me info on L6 o-ring sizes?

Follow up to my previous post of L6 with TA driver w/ narsil v1.4. By Lexel. Previously the led had a very low glow with side switch in the off position & tail on. See post #227. Lexel thought it was a leaky 7135 chip.

Now I’m seeing this, batteries are at 3.9 volt ea. Wondering if there is a way to measure 7135 chips to pinpoint the culprit.

Regarding the glowing emitters while off, I think I know the cause in my case. Your cause might still be the 7135. I’m not sure of an easy way to check for sure other than removing the 7135 chip and seeing if the glowing stops.

I used all 7 emitters/MCPCBs from my 7xXPL L2 build to make my 7xC8 build, using a (different) FET-only driver with e-switch. Now only the first parallel string of emitters glows while off. So I think there must be a high-resistance connection from one of the LED negatives to ground. In my L2 build I must have had this one LED in the second parallel string, which made all of the emitters glow. In my current build that one LED must be in the first string (from positive), making just the first string glow.

Wow, thats odd. Maybe Lexel should replace it? I know it’s only $25, but I’d be pretty upset. If he sent you a new one and you sent the old one back to him, he might be able to remove all components and reflow them back on (using new 7135 chips) then he could simply resale it to another person so he doesn’t lose much money.

I’m recharging batteries to see if symptoms are related to voltage.

In the new batch I tested the drivers with a XHP70 LED and had 2 drivers with the same behavior
Its voltage related the 7135 support oficially only 6V

Both had a 7135 chip with leak current

Its no problem to fix the driver for free if you send it to me

Modded the H2-C driver with a R030 sense resistor to output 2.37A to the XHP35 HI E2 3A emitter. (see this post and thread for info on modding this driver) I filed down the edges to make it fit in the L2 driver space. I could not get the output to be stable at this level with 1s input, so I’m using 2x26350 cells. These cells are a bit too long for the L2 single tube so for now the battery tube is not completely threaded into the head, to make room for the cells.

I measured 250Kcd at 6m. I was comparing the L2 w/XHP35 to my fandyfire SP02 with dedomed XPL V6 1A, which does 243Kcd with a fully charged 30Q at about 20s. The SP02 has the same reflector as the HD2010 and Mitko’s BLF style thrower. Based on a ceiling bounce test the L2 has about 30% more output. The two beams look very similar. The L2 hotspot is very slightly larger with a larger corona.

So, a pretty good result, but not a huge performance increase over the dedomed XPL V6. The boost driver/XHP35 setup also uses quite a bit more power, about 60% more from the cell(s).

I took the H2-C driver and XHP35 out of the L2 and replaced it with a sliced XHP50 J4 running off 2x26350. It pulls around 6.5-7A from the 26350 cells and does about 2900 lumens at 15s and 157Kcd at 30s. There is a donut hole.

Edit: I’m pretty pleased with the short L2 and XHP50 combo. The beam is about the same size as an EE X6 with XPL HI now.

Modded my Convoy L6 with TA 30mm driver by Lexel.
This is my very first mod and I reused the spring and lead wires.
Thought I burnt a chip but luckily the flashlight is working.
Steep learning curve for me as its a first for me especially the soldering part.

Quick question, does the LD-29 in the L2 support 5-6V emitters with 2x li-ion input? I want to put a XHP50.2 in mine.