Sounds good, what I do not know is if 0.25 lux is visible by eye to know more ore less what is the difference.
Don´t tell me why I have ordered the Ultrafire T8 with two lenses from Manafont, I don't feel it will win any of these throwers, but I wanted to give it a try as it is a new concept for me.
0.25 lux is just barely visible to the naked eye at a dark site. In an urban environment, it is very difficult to see but not impossible on a total white or metallic silver surface. My external ambient is about 0.05 lux.
It might be more or less what I see, I see the reflection on windows when moving left to right, as where I live there is a lot of light pollution.
Sorry for being a pain 2100, I am like a 6 years old boy asking why are the clouds white.
Do you know the focal length for the DBS?
I feel it is also a parameter that can make a difference, and more with XM-L and its bigger emitting angle, the less focal length (the closest the die is to the lens) the more light it can throw as it will not hit the walls of the head.
Yes Gorann, that is the one :)
I do not know how it will perform, it was a bit like a blind purchase.
It has just 12mm travel, it sound good to me, lets see how good it concentrates the beam..
Hehe, wait for me to see the results if you want to.
It might be a good deal or a total shit hahaha, I like the concept, and I hope it will not just be a concept.
I ordered it the past 17th, so lets see if I get it in about two weeks...
I will let you know how good it is when I check it.
I do not know what I will do with it Gorann, if it is good as it is I will leave if not I will probably check with an XR-E or an Osram SSL 80.
I don´t find it now, but I think the head used to be in Kaidomain, I have only found the whole flashlight.
http://old.kaidomain.com/ProductDetails.aspx?ProductId=1101
2100 would be the best one to tell us which lens would work better..
4Sevens had a couple of heads in their clearance area recently.
I know the CL1H v4 and DBS tube are compatible with STL-V6 head. And Ultrafire U80 and Ultrafire C8 is compatible with STL-V6. You can search in this forum, i posted some pix and another guy also posted his C8/STL-V6 combo. It is used to get an ultra-short STL-V6.
However, i am sure you can never get it to work in the DBS head housing because it is slight smaller. Besides the focal length is different.
I read that the head collimates a wee bit better and gets you more lux. It's nearly 100k for the current DBS EZ900 aspheric and 120k for the Tiablo A9 modded with a R2 EZ900 (and it is extremely difficult or rather literally impossible as it is glued to the die, you need to screw and lever and knock it out). Stock Tiablo A9 that WAS being sold last year gets you about 90 plus K cd. Note the word "WAS".
But do note, though the CL1H v4 uses P60 style drop ins, it cannot work with Ultrafire P60s with the external spring and you need to take it out. So i guess the threading is identical.
Not sure how are you able to get a Tiablo A9 currently.
Another option is the Lumapower Ultra VX with Turboforce reflector head. Not sure how can you swap in the EZ900 pill as i am not sure how does it work, but it gets 90+ K cd as well with EZ900. Stock is already 70k cd. Not cheap also.
In short, the DBS aspheric is your best bet, no meddling, gets you into the 100k club for 86 bucks.
I actually paid 79 bucks last time for the EZ1000 pill and "upgraded" to this EZ900 for $23. Should Cree come up with something else next year, no problem at all. Dereelight is one of the most stable brands after Fenix and has a history as long as that if i am not grossly wrong, but it is not marketed well.
The size of the hotspot doesn’t determine how far it throws. The focal length of the lens will affect the hotspot size but not the throw.
Ok, just digged out some history. Fenix started off in 2005. Dereelight was started in 2007.
As far as I have been able to find out for myself, the hotspot size is also determined by the lens curvature / thickness and its diameter, so with a lens closer to the die, depending on those two factors you can have smaller or bigger hotspots.
The further you can get the best focused part of the beam, the further it will throw, some lenses make the beam look focused at 1-2m and other ones look defocused on that distances, but focused at 5-6m.
The hotspot size does not determine how far it throws, that is true, but because there are more factors that determine the throw in my opinion, but the smaller it is helps to determine how concentrated the beam is.
With a smaller focal length the lens will be closer to the emitter and will capture more light and that’s why the hotspot is larger. It doesn’t throw further however.
With a larger focal length the hotspot is smaller but it’s not any brighter so it doesn’t throw any further than the smaller focal length.
You can check this out for yourself with a light meter.
When the diameter increases and the hotspot decreases the light does become more intense and it does throw further.
The common mistake is thinking that since the hotspot is smaller with a larger focal length than will a shorter focal length that it must be more focused and therefore brighter but that’s not the case.
If you end up buying the “little fellow” be sure to post a review 
I think that one is interesting as well.
I think it’s a little longer than that first picture would suggest however if you look at the other pictures.
Too bad they don’t give any dimensions for the head (or anything else for that matter).
It says twisty but you can see that it’s actually a clicky.
The more I look at it however the more I think it may just be another HS-802.
From your answer is difficult to determine (at least to me) what makes a lens to throw further, I understand it is not the focal length, nor the hotspot size, so, what do you think would be the "perfect" lens comparing two lenses on the same diameter?
What is your opinion also regarding the lens curvature?
Till now the little experience I have with them, the one that throws further into the ones I got, is a 38mm acrylic lens, I've got some bigger ones some in glass some acrylic, but that one has the smaller and cleaner hotspot and throws clearly further than the rest I got, being the biggest one 50mm diameter and much thicker.
I like more the flood to throw ones due to their versatility compared to flashlights with a fixed lens.
Two lens with the same diameter, the same emitter, driven with the same current will throw the same. Of course the quality of one lens over another is possible (clearer or with anti-reflective coatings) but that’s not likely to be the case in the price range that we are talking about. You could just get a “bad” lens I suppose.
Focal length is what determines the lens curvature. As mentioned more curve with a smaller focal length and it will be closer to the lens and therefore will have a bigger hotspot. The larger focal length will be further away and have a smaller hotspot but both will throw the same.
If you have a 38mm lens that is throwing further than a 50mm lens something else is not the same between those lights. If they have the same emitter driven the same the 50mm should throw 31% further than the 38mm lens.
The 38mm one has a bigger focal lenght than the 50mm one, and the 50mm one does not focus as good as the 38mm does showing clearly all the lines of the die on the wall at about 4m, while the 50mm one doesn't at any distance.
I have got a third one, having a usefull diameter of 37mm, thicker and with a shorter focal lenght that throws something in between the 38 and 50mm, not a perfect focus but closer to it than the 50mm one.
All of them throw much further than the typical 28 external and 20mm internal diameters from the X2000, MXDL SA28 etc etc (they are all more or less the same), where by the way I also have a 28mm one from DX, with 27 aprox usefull diameter made in glass that is really worse than the acrylic one with 20mm.
I have tested all of them "by eye", with XM-L T6, U2, XR-E Q5 and R2, all Direct drived, I had been swapping leds and dies, as I have more than one host for each.
As chineese material is like a lotto, I do not find that easy to say, the smaller focal lenght or the opposite will throw better.
Here you got some pics of what I got but the 50mm one, which was scratched but I can tell you it was the worst out of the big ones, I only show one of the 4 38/33mm as they are all the same diameter an height, but they do not work all as good, two of them throw further, than the other two.
