BLF style 18650 1s thrower( poor mans Olight M2X)

The next one came , this time it`s a S4 1A based( from the old ones, 4.7amps capable) and tests shows it 280-300cds , the hotspot is nearly perfect, i just need to sand the pill this days, ordered some Ar glasses from KD and i am thinking about a new pill, the default one isnt that good.
The pill and the defautl driver are kinda different from the first one that i got

Can you give us some measurements ? (Pill’s) Threads OD , height etc

If not , no problem at all :slight_smile:

Edit : Just measured my UT02 with dedomed S4 1A i made 3 days ago , i think the emitter is one of these djozz described as old-dot-pattern/new-phosfor-type and it’s making 300,4kcd with a rested Liitokala battery . It would be interesting to check this flashlight with this led too :smiley:

Very encouraging results guys. Now I know I can expect around 330 from my mod.

But inconsistent production? LOL that should be really crazy adventure. But if it accepts UF T20 pill than there should not be any problem. Problem would be with inconsistent reflectors.

Edit this is fairly cheap and it should fit?

Nope m8. Got those in the cashe…do not fits.
As i said t20 pill fits yet its designed for 16mm pcbs

Keep in mind that Mitko uses original old S4 emmitters , you should probably expect 290-300kcd from it .

Perseverence! Got the Black Flat working in this nightmare! I made no pictures, here’s some words:

-replaced the blown switch with the same KAN28
-Sanded the base of the reflector as thin as I dared, less than half a mm
-I already had cut away the sides of the reflector base to make room for the wires (see somewhere above in this thread)
-as also mentioned above I used a Black Flat on a 20mm Kaidomain DTP board (sanded down to 19mm), no driver and original driver board used as contact board, both springs bypassed with the cap over the tailspring removed, 30Q battery
-I had to bevel the inner edge of the pill quite a lot to allow the reflector to come close enough to the led, this was essential!!
-I still used a centering piece, reamed the hole a bit because the Black Flat is slightly bigger than 3535-size, and with the base of the centering piece sanded paper-thin, the reflector is now less than half a mm above the ledboard
-I cleaned the reflector after all that filing and sanding by soaking with water and soap, last rinse with distilled water. The reflector still looks quite abused though.
-sticked Kapton tape over the cut-outs on the reflector, and also over the ledwire solder blobs
-I silicon greased the thick o-ring on the inside of the bezel so that upon closing the bezel it would glide easier over the glass.
I positioned the reflector as well as I could over the led+centerpiece, glass on top and while pushing the glass down firmly with a rubber pad I could screw the bezel almost down to maximum tightness, but not the very last bit, so I fixed it by tightly wrapping the groove where bezel and head meet with two layers of cellotape (sounds ugly but it is hardly noticable, and very effective)

The led is in perfect focus but ever so slightly off-center: the hotspot looks fine but the corona is slightly assymmetrical. On an almost full (4.06V after all measurements) 30Q battery I measure 694 lumen (which is very close to max for this led), 5.0 amps and 343kcd (measured at 7 meter after 30 seconds). The output is pretty stable so heatsinking is good and the Black Flat seems happy sofar. If the led had been perfectly centered and I had not abused the reflector so much (and by using AR-coated glass) it could have been a bit better even.

Are there any numbers on an old-style dedomed XP-G2 S4 2B in a HD2010 btw? Could be over 400kcd I guess?

Here’s the hotspot on a white wall with the flashlight at 7 meters distance:

BRAVO!!! :+1: Pretty sweet that you pushed thru it and got some great results! :beer: Now buy another one and make it perfect!!! :smiley:

Hi, what is the diameter of the reflector hole? regards!

Sorry, I would not know anymore because I reamed the hole a bit to fit the centrrpiece that I had

I’d end up forgetting all the work it took and open it, screwing everything up. lol

Nice job!

I fixed my old Olight SR-90 Intimidator to take two 32650’s. I put a clicky switch in the tail cap for lockout and used an 18 ga lead through two pcb’s to contact the tail end of the cells. This all went together very intricately, the inside pcb had to be able to spin in order for the tail cap to screw on. Not long ago, forgetting all this, I cranked the tail cap off and broke the 18ga lead from the negative (and the additional 18ga lead to the battery positive. UGH! I only just fixed it again, need to get some glue in the threads on the tail cap so I don’t do it again. (Or engrave Do Not Open on the tailcap… so forgetful)

If it is same to HD-2010 (I guess), I can share drawing with you.

In post #149, Mitko said a T20 pill fits - it's very different in size from an HD2010 pill - see my picture in post #78.

Nice to see you hop in here, kariba-ru. I have searched your work on Google.

It would be fantastic if you could help us all get by this hiccup with this mod candidate :)

I am new to the mod scene. So will listen and learn more than comment

Here we go :slight_smile:

Actualy T20 pill fits better yet we do need a CU pill in there, what do you think about that matter?
If so, i could give you some thoughts about it, it should be actualy something like the t20 pill yet with a flat emitter plate in order for it to be capable of 26+mm pcbs carrying

I got 320cds out of that body folks, nearly the same as a very well modded M2X: with everything needed for a good mod but the ar glass

For the money, one of the best thrower budget deals atm: its the reflector equivalent of B158

Im short-sighted so Im not into this throwers :wink:
If you need some copper pills, I can do them, but I dont want to have one more useless host on my table. If you can send head with stock pill to me, I will return it with upgrated pill :beer:

If you accept i will buy one in your address … It will be around the same cost wise as sending one to you from here

:slight_smile:
Lets wait Mitko`s reply

Of course :slight_smile:

I will be buying 2 pills if you produce copper pill for 26mm mcpcb (depending the price) .

I also have good old G2 S3 2B(which should be even better than Mitko S4 1A, and only about 10% lower performance than S4 2B) so now when I saw Djozz result I think even 350 kcd should not be any problem and all that with just 4,5A current draw :slight_smile:

Nice results guys. Djozz managed to get through :+1:

Mitko I don’t understand this.

This what I will mention below is real T20 pill cause I’ve done couple of them with 20mm mcpcb’s so I really don’t understand how it don’t fits for you?

This is real T20 pill that I bought at fasttech and fitted to couple of T20 :
this is

So if T20 pill fits I really don’t get how this particular T20 pill won’t fit? :smiley:

Folks over at TLF have taken a closer look at the Black Flat than we did at BLF, and found that they vary quite a lot in voltage, output and current handling. But if you strike a good one that handles high current well, the illuminance of the die and thus throw can surpass the best dedomed XP-G2.
So if I was lucky with my led (that was driven to the max in this mod), 343 kcd may be harder to beat than you think.