TrustFire X9 - Thoughts and beamshots

The problem is that this kind of measuring is very inaccurate. You get the right current when the resistance of the tailcap and the DMM is the same, and the DMM is accurate of course. If you use short and thick leads, sometimes you will measure much more current than the real when the tailcap is in the place, because the resistance of the tailcap is higher than the DMM+leads.

Vice versa if the resistance of the DMM is higher than the tailcap you will measure lower values.

So it would be the best, if you could equalize the resistances. But these are very low resistances, and hard to measure.

Do you understand what i want to say? My english is not good.

Should it not be 1120L at the LED?

No, XM-L T6 Cannot get past 1000L

It get's 1000L @ 4.2A

Maybe in Cree's lab @ 0 Celsius with the best samples of T6 it can do better, but that's not real life anymore.

here is the beamshots of BC40, X9 (ebay) and modded X9 with KD driver

kd driver = shits bright lol..

What should I do to see the pictures in post #221? Right click and Show Picture doesn't help.

No photos on post 221

I dislike imageshack. lol It takes too much time.

So you have two X9's Krikstas? You happen to have the tailcap readings on both?

THat driver mod looks impressive! Anyone make a driver swap tutorial for the X9 yet? ;)

BC40
bc40

Ebay X9 #1
x9ebay

ebay x9 #2 after KD driver mod
x9kd

thanks fishmaniac for help

Tailcap readings:

X9 ebay 1.5 A

X9 KD 2.7

Are you sure those are two different X9? Man you sure are fast, both photos taken within the same seconds of 26th minute of 19 PM. And an exact perfect match on the hotspot? Looks like it's medium then high on the same X9. Great job I guess.

well i am sure they are different :) difference is 16 sec maybe it looks fast on paper but in reality it was quite normal

Is there a link to the 3 mode mod for this driver ?

It's here:

https://budgetlightforum.com/t/-/1022

You can leave the PCB connection of the leftmost star in place. The connection of any other star will take precedence.

Thanks

Has anyone measured 2.8A using the Nanjg 105c (8xAMC7135) driver?

I see someone got 2.7A.

I just tested to make sure, and yes, I get 2.805 amps.

Nice! Standard leads?

I was curious because some have got 2.6A from this driver.

But then everybody has all kind of DMMs and use standard or custom leads.

My lead aren't standard. I use leads that have banana clips on the ends. The wire isn't particularly thick (maybe 16-18ga.) and they are 1m long.

EDIT: I just measured with the stock leads and could barely hit 2.0A.

Further EDIT: I have 2 DMMs, and if I test the resistance of one DMM with the other I get between 0.0 and 0.1 ohm with the banana clip leads and 0.5 ohms with the stock leads.

Wow, that's one huge difference. From 2.805 to 2.0

Thanks for testing.

I tried my X9 with 2X16340 and burned both driver and led. So, because i couldn't find a replacemend led with 32mm board, i sticked an XML with smaller board to the back side of the original 32mm led board.

Also changed driver with KD driver:

Please forgive me due to bad pictures taken by my cell phone :) . Because i don't have a good camera, i couldn't put a picture of throw but, i will show you the picture taken from googleearth which shows the most far distance that my eyes can notice:

And this distance with demaged reflector surface. I dont know what happened to the surface. Is it possible because of too much heat dissipated from led?