Yep, I like the driver alot! 
Except the blinky’s!!! |( I like it because you could use the push button to turn on and cycle thru the levels too? I’m guessing that’s why they have 2 mcu’s? Jump R2 to get 5.5 amps and I wonder if you could replace the FET to a better one? But I’m keeping the old one in hopes somebody out there can re-program it? I don’t know of such things as this yet? :~
That Uranusfire has a really nice size reflector IMHO.
Personally I think 18650 is a much more widely accepted form factor, mainly for pocket-ability.
It seems like all the manufacturers are in the same region in china anyway, so if we cant simply send them a CAD file, (which is extremely simple) we could specify what we want to Manker (or similar) and have them get back to us with the parts available locally?
Its so hard to get any information out of the manufacturers, but if we could source Uranusfire direct I’m sure we could get a nice limited edition light for a much more realistic price.
A CAD competition could be in order
Chris
It wouldn’t take much to do really? My SRK X3 18650 battery tube almost fits the 818 and looks really COOL!! Often thought about making adapter rings to change 26650 battery tubes to 18650’s or a 26650 battery tube for my Courui’s, to carry a little smaller/lighter. :bigsmile: It would be great to have both 18650 and 26650 battery tubes with a light even if you can run 18650’s in them? 
It doesn’t mind me at all, I have plenty of batteries, but from a cost reducing perspective it doesn’t help thats all.
My most used light is an HD2010 because I get massive runtime and I have RyanSoh’s copper slugs which do an amazing job in heatsinking.
I’ve seen people like Robo mention they are on benefits etc, so for every $10 we can reduce the price we would probably double the amount of people that will buy, and thats important. This is BUDGETlightforum after all.
Its a bit of a joke reducing a retail price by $5 and adding 10 cents of engraving and calling it limited edition.
The whole lego thing is pretty fun, a host kit could be a goer but again will definitely reduce the volume of sales.
Chris
I like the X3, but I think the X3 is over bulky because of the waisted space in the tube - an 26650 needs a spacer / oring to sit tight.
Have not seen the UranusFire in person, but it looks like a nice light. I like your recommendation Tom. I also like the fact that it takes 26650. The additional performance (current & runtime) from a 26650 is worth the extra size for me…
I’m not sure about e-switches. What’s the general consensus?
This looks almost exactly like what Ben was suggesting
http://www.kaidomain.com/product/details.S023626
Just a tad overpriced and unsure of thermal path design etc
Chris
Not sure either… It just looks really nice! LOL The brand is overpriced IMO…
Wish KD would publish the dimensions, specially head diameter. If that's a real SS bezel, than based on the pics of the head size, it's a pretty good deal at $20, all depends.
Well, I like e-switch's much better - better usability if it's done right - quality switch, good feel, the position is generally much better to operate it from. This is why many/most larger size higher end lights have a side switch, even many of the small ones do.
To mod them is more of a challenge though. For a stock Group Buy e-switch light, there are some things to look for. I much prefer full control on the side switch ON/OFF, but the driver when OFF, should be in a low power mode, so the parasitic drain is almost insignificant. With our custom drivers, we insure all this.
From the pictures the body tube looks like it only takes 18650, and based on the ratio of the head diameter to the body tube it also looks to me that the head size is about the same as the C8…
Was wondering - the one vertical standing pic seems to show that in a C8 size or so, but others seem to show the head bigger. KD's pics (and website in general) is horrible - nothing much improved.
Not much info here either.
http://www.alibaba.com/product-detail/CREE-XM-L-2-1400-Lumens_2017931309.html
That KD light looks good but the bezel is too thick, reflector will not be as big as it could be. Hate when they do that.
But this Lustfire D02 has the side switch and is 26650.
http://www.kaidomain.com/product/details.S022434
This listing shows dimensions, they list it as 54mm head;
http://www.ebay.com/itm/LusteFire-D02-CREE-XM-L-T6-5-MODE-1000Lumens-LED-26650-Flashlight-Camping-hunt-/310735934025?hash=item48594e1249
Here would be bulk buying at $23-30 ;
The Lustfire K 08 lights were beasts and the smaller D01 was a nice C8 size head with 2 26650’s and easy to do simple resistor mod for 5 amps.
HTH
Keith
wow! nice find! 
Here are some nice pics and specs, must do translation;
http://world.tmall.com/item/13012947732.htm?spm=a1z10.1-b.w7300850-9502604291.1.ltlTuA&id=13012947732&rn=0fcf36b7b9b1da6e48de3f94b0a7d9c3&abbucket=0#
Nice cross section shot shows the head at 60 mm and reflector at 55mm.
looks like roughly $46-49 US conversion
Same size head as the X3
What’s the main difference between the X3 and X5?
The X6 is here, pricey, but the head diam is 54 mm: http://www.banggood.com/On-The-Road-X6M-CREE-XM-L2-T6-1000LM-T6-1AT6-3C-LED-Flashlight-p-920455.html
18650 vs 26650 looks like the main difference.