Thank you.
Sorry to insist but, is there a model with zoom ?
Yeah, the reflector (and lens).
Big reflector gives you throw (tight beam)
Well, 8x 7135 provides the rated maximum current for an XM-L2, but for an S2+ you might want to choose 6x 7135 so it gets a little less hot.
But it’s nice to have maximum rated power, just to please your mind. 
It has most of the light towards the blue of the spectrum, whereas the warm “yellow” tint has most of the light towards the yellow part of the spectrum.
It certainly has benefits over cool white.
Usually the Lumen output is a little less (cool white usually have higher brightness bins, in this case T6 for the 3B and U2 for the 1A) but humans can see things better with less blue in it.
Cool white light is a little blinding sometimes. The blue light scatters inside our eyes, more than yellow does.
With a cool white light you see the beam and the hot spot very well, with warmer tints you see what you shine the light on better.
So if you want a ‘light saber’ you want cool white.
I have a Convoy C8 with XP-L HI (the version without dome) U6 brightness bin and 3A tint bin which i really like.
Without dome you will have a tighter hot spot, making it a nice little thrower.
The tint is much more pleasant than 1A, and it’s more to the red tint side than 3B or 3C
Basically i prefer the A and D tints (1A, 1D, 3A, 3D etc…) because Cree LEDs tend to be a bit to the green (puke) side (especially the B and C tints).
Convoy has a zoomie, but it’s not really popular. (not sure why)
A very nice zoomie is the Brynite B158.
It will out throw a reflector light, but has no spill and no corona around the hot spot.
You basically project the LED ‘die’ (the chip with the phosphor) on to what you point it at.
In real life a reflector light is much more practical (i.m.o.).
Thank you very much for all Jerommel 
I just ordered this :
https://www.aliexpress.com/item/Convoy-c8-strong-light-flashlight-cree-xml-u2-t6-torchy/826040641.html
with U2 - 1A and 7135x8 mode option 3
I hope Simon send it quickly !
Hi,
I’ already have many 18650 batteries but they are old now.
Thank you for you link NCR batteries but I don’t need 8 pcs.
What do you propose for batteries, max 2x or 4x pcs ?
Sanyo ? Panasonic ? NCR ?
And where to buy it (other NKON but Asia OK) ?
Thank you
Yeah, strangely enough the 2 pcs deal is always sold out…
Samsung INR18650-30Q 3000mAh 20 Amperes (i think):
http://www.gearbest.com/batteries/pp_232874.html?lkid=10600986
Use that link and this coupon code: Q302
Found them in this topic: GearBEST's Sale . Rovyvon A5 $15.99 . Convoy S21 $15.99
You can find 4x LG HG2 there too, which is a similar cell.
Or browse Gearbest and Banggood for the good old 3400mAh Panasonics.
4x Samsung 30Q:
Thanks again Jerommel
Why 18650 exist on 3.7v or 4.2v ?
Is 4.2v better or more power => http://www.gearbest.com/batteries/pp_399868.html) ?
In this thread (RIP my FandyFire C8 : other best alternative ? - #16 by Jerommel), you propose 3500mah batteries.
But you think the Samsung 30Q 3000mah are best ?
Thank you and goo day
The average Voltage is 3.7 Volts.
But it’s a range from 4.2 Volts fully charged to 3.0 Volts fully discharged.
Those 3000mAh cells are suitable for high currents.
For your light that Sanyo 3500mAh would be best.
The good old Panasonic 3400mAh can be the best deal sometimes when you find a nice offer.
You will need a decent charger too, by the way, or do you have one already?
Yes, I have an old Nitecore i4 charger.
… is it always good charger ?
I just now find Sanyo 3500mAh for 2pcs.
Thank you Jerommel
I just found it !!!
Thank you my son: D
In a few days, I’ll can compare my new Convoy C8 and my old Fandyfire XML-T6;)
:+1:
Ordered since 10 days and no news.
Tracking does not work.
Simon said tracking will work end of last week but not yet this monday…
Hi,
I just receive the Convoy C8 today.
Good quality…
…but not very more bright compared to my Fandyfire C8 XLM T6 (5 years old), just a little.
Now, I’ll buy another flashlight, more little (but with 18650).
I’ll open another thread for that.
When we are talking about lights with more than 800 lumens, another increment of 200 to 300 lumens on top of that may not be noticeably brighter to human’s bare eyes especially if the environment is not entirely dark. You probably need some numerical measurements to tell the difference.
You’re probably right.
I just tested it on a wall indoor at short distance (8 meters).
I must try it outdoor this evening and I come back after for result.
Install a fet driver in it and ypyll see a big difference
What is a fet driver ?
And what isypyll ?
Can you propose links where to buy/understand ?
Thank you
Man, I feel for you. I sold my last one to a friend, but heck, those were solid lights and bright as f* for their day. And they could handle their heat no problem.